How to Beat the Chimera in Raid: Shadow Legends. A Complete Team-Building Guide.

What the Chimera Is and Why It Plays Differently From Other Bosses

The Chimera is a Clan Boss fight available only to Clan members, found on the Clan Bosses Map under the "Clan Bosses" game mode. It unlocks at Level 33. You'll take five Champions into battle, and the fight runs for exactly 65 turns of the Chimera itself, not your Champions — so a long, grinding fight is the expected shape of this encounter, not a sign that something's gone wrong.

The defining feature of the Chimera is that it isn't really one boss, but four: the Ultimate Form, Ram Form, Lion Form, and Viper Form. Each has its own skill set, its own immunity passive, and its own specific weakness — and the entire fight comes down to exploiting those weaknesses one form at a time. Difficulty climbs in six steps: Easy → Normal → Hard → Brutal → Nightmare → Ultra-Nightmare, each one unlocking permanently for your Clan once you've dealt enough cumulative damage on the previous tier, with the damage caps growing right alongside it.

Break the Chimera down form by form instead of trying to hold the whole fight in your head at once, and it stops looking like chaos and starts looking like a repeating set of rules. From here, we'll walk through how the forms cycle and share Affinities, what the shared immunities and damage caps actually are, how the Trial system works, and then go through each form in detail — its skills, its passives, and exactly what the counterplay is built around.

Form Rotation and the Rules That Apply Across All Four

The Chimera cycles through its forms on a fixed 5-turn rhythm: Ultimate → Ram → Ultimate → Lion → Ultimate → Viper → Ultimate, and that whole sequence repeats a second time before the fight ends — the Ultimate Form alone accounts for 7 of the fight's 13 five-turn segments, far more time on the field than any single animal form. Every time the Chimera shifts form, it strips every buff and debuff it was carrying for the previous five turns — worth remembering if you're planning to grind down a specific form with long-duration debuffs, because they simply won't survive the transition.

The Ram, Lion, and Viper Forms always share the same Affinity with each other, while the Ultimate Form sits on a different one. Affinities reshuffle at the start of each 28-day rotation, so there's no way to know in advance which Affinity you'll be facing next cycle — check in-game before each new attempt rather than assuming last month's setup still applies.

The Chimera's Turn Meter can't be reduced in any of its forms — effects that instantly fill your own Turn Meter or cut down an enemy's don't touch it here. A plain Decrease SPD debuff, though, works on every form without exception, so slowing the Chimera down remains a legitimate way to control the pace of the fight — just not through direct Turn Meter manipulation.

Shared Immunities and Damage Caps

Every form carries its own version of the "Almighty" passive, and the list of what the Chimera shrugs off is long:

• Petrification, Stun, Freeze, Sleep, Provoke
• Block Active Skills, Block Passive Skills
• Fear, True Fear, Hunter's Gaze
• Berserk, Enfeeble, Nullify, Ensnare, Fatigue
• HP exchange and HP balancing effects, cooldown-increasing effects, MAX HP destruction, and Turn Meter reduction

But each animal form carries exactly one exception to this list — and that single crack is what makes direct crowd control possible at all. The Ram Form is susceptible to Block Active Skills. The Lion and Ultimate Forms don't have a documented exception of their own, which means crowd control is a dead end against them and you'll need to lean on other tools instead. (Note: the Viper Form's own materials describe it as vulnerable through a different route — see the Viper section below, since poison and Necrosis, not crowd control, are the pressure points there.)

There are also hard caps that stop any single skill from stripping an outsized chunk of the Chimera's HP in one hit. Damage from skills that scale off the Chimera's MAX HP is capped on a sliding scale by difficulty:

• Easy — 100,000; Normal — 120,000; Hard — 140,000; Brutal — 160,000; Nightmare — 180,000; Ultra-Nightmare — 200,000
• Smite debuffs run on a separate, higher scale: from 100,000 on Easy up to 350,000 on Ultra-Nightmare
• Fixed caps that don't scale with difficulty at all: a single tick of a 2.5% Poison debuff can't exceed 10,000 HP, a 5% Poison tick can't exceed 20,000 HP, HP Burn can't exceed 40,000 HP, and Reflect Damage combined with the Warmaster or Giant Slayer Masteries can't exceed 100,000 HP total

The Lion Form flips one of these rules on its head: it takes five times more damage from Reflect Damage, Pain Link debuffs, and passive reflect effects — the only form in the fight where leaning into reflect damage actually pays off.

The Trial System: How the Ultimate Form Gets Stronger

Every form has its own set of in-battle objectives — deal damage under specific conditions, land certain debuffs, or keep your team alive — and completing them earns rewards. There's a sharper edge to this system, though: the Ultimate Form's "Savage Evolution" passive grows stronger for every 3 Trials completed, and that growth is cumulative and genuinely dangerous, scaling all the way up through 27 Trials split into nine thresholds.

The progression:

• 1–3 Trials — ignores Unkillable buffs, ATK +5%
• 4–6 — ignores Block Damage buffs, C.DMG +5%
• 7–9 — ignores 25% DEF, C.RATE +5%
• 10–12 — ignores damage reduction from anything except buffs and debuffs, ATK +10%
• 13–15 — ignores Ally Protection buffs, C.DMG +10%
• 16–18 — ignores 50% DEF, C.RATE +10%
• 19–21 — ignores Strengthen buffs, ATK +15%
• 22–24 — ignores Shield buffs, C.DMG +15%
• 25–27 — ignores 100% DEF, C.RATE +15%

One detail that's easy to miss: this empowerment applies only to the Ultimate Form. The Ram, Lion, and Viper Forms don't get stronger from Trials directly — but since Trials are tracked across the entire fight rather than resetting between forms, the counter can already be well advanced by the time the Ultimate Form comes back around. That means dragging the fight out to squeeze in every possible Trial is worth doing carefully — the further you've progressed, the more dangerous each return of the Ultimate Form becomes.

Ultimate Form

Every fight opens on the Ultimate Form, and you'll spend more time facing it than any other — seven segments across the full cycle against two apiece for the others. Its three active skills:

• Baleful Torrent — hits the whole team: places a 1-turn Provoke debuff (2 turns if the target is under 50% HP) and a 30% Decrease SPD debuff on all enemies for 2 turns.
• Pincer Lash — also AoE, and scales dangerously off debuffs sitting on the Chimera itself: damage rises by 10% for each debuff it's carrying, and it places a 30% Increase SPD buff on itself for 2 turns. This is the direct reason to be careful about stacking multiple debuffs on the Ultimate Form at once — the pile-up literally feeds its hardest-hitting attack.
• Consume Matter — AoE that strips every buff from your team before attacking, gaining +10% damage for each buff removed, so defensive buffs sitting on your team under this skill turn straight into extra damage against you. This is where a Protected Buff effect earns its keep: a buff carrying that tag can't be stripped by Consume Matter, so it never converts into fuel for this attack — keeping at least some of your team's buffs Protected is worth doing specifically for this skill.

The "Unholy Metamorph" passive handles the transformation itself — it strips all buffs and debuffs from the Chimera and shifts it into one of the other three forms. A second passive reduces incoming damage by 10% for each enemy with no active buffs (capped at 50%) and by 50% from enemies under Provoke — which means keeping buffs up on your own team pulls double duty here too: it protects against Consume Matter's buff-strip and denies the Chimera that damage reduction at the same time.

Ram Form

The Ram Form weakens attacks and methodically converts buffs into debuffs, but it also has a signature mechanic none of the other forms share — Duel. At the start of its turn, the Chimera places Duel on itself and on the ally with the lowest Critical Damage on your team. While Duel is active, the Chimera deals 50% more damage to that Champion, and every other Champion not under the effect deals 50% less damage to the Chimera — it cuts both ways, not just a penalty on the rest of your team. Duel also takes priority over Taunt, Veil, and Perfect Veil: the Chimera will always go after the Duel target regardless of what protective buffs are on the board. It's a guaranteed effect too — can't be resisted, blocked, stolen, or removed. To end it, your team needs to burn through the Chimera's Duel bar, worth 1% of its MAX HP; once that's done (or either side dies), the effect drops from everyone.

This is where the Ram Form's one immunity exception comes into play: it's susceptible to Block Active Skills, which prevents it from being able to reapply Duel in the first place. A Champion who can land Block Active Skills is close to mandatory here if you don't want most of your roster sitting idle for five turns straight. Ronda is one option for this — her kit lands Block Active Skills after her attack, and the same tool happens to be exactly what you need against the Viper Form too (see below), so she isn't a one-fight specialist.

Its three active skills:

• Monstrous Stomp — hits twice at random targets, prioritizing whoever's under Duel, cutting each target's Turn Meter by 50%; if the target's Turn Meter drops below 50%, it also applies a 1-turn Stun — and a successful Stun grants the Chimera an Extra Turn.
• Hammertail Quake — hits one target, then hits everyone else with rising damage (up to +50% based on how much HP the first target lost), applies a 1-turn Stun to everyone but the first target, strips any Block Debuffs buffs from your whole team, and finishes with 30% Decrease C.RATE, 25% Decrease C.DMG, and 30% Decrease SPD debuffs on the whole team for 2 turns.
• Maiming Stampede — attacks one target, first removing every positive buff and replacing each with its mirrored debuff (Increase ATK becomes Decrease ATK, and so on) for 2 turns; gains +10% damage for each buff converted, and repeats the attack if the damage dealt reaches 20% or more of the target's MAX HP.

The "Unbreakable Focus" passive reflects 25% of incoming damage back at the attacker (10% if the Chimera is under Fear, none at all under True Fear, provided the attacker isn't under Duel), ignores 50% of a target's DEF if they're under Taunt or Veil, and instantly transfers any debuffs it receives back to whoever applied them. That means going in on the Ram Form without accounting for this reflect can end up hurting your own team — and Taunt on this form can backfire, strengthening it against you instead of protecting your Champions.

Lion Form

The Lion is the most aggressive of the four forms, and its signature tool, "Hunter's Gaze," shields its damage from reduction, blocking, redirection, and transfer — but only for damage dealt directly by skills, not from debuffs, passives, Masteries, or Blessings. The full ignore list is longer than it first looks: Unkillable, Block Damage, Increase DEF, Strengthen, Ally Protection, Veil, Perfect Veil, and Shield are all useless against it. Champions can still Evade while under it, though. The only real answer is a Champion under Taunt taking the hit in the marked target's place. Worth keeping separate in your head: the tools that reliably keep your team alive against the Viper Form (see below) are simply ignored here, and leaning on them against the Lion is a mistake.

The price for that aggression is steep: the Lion Form takes five times more damage from Reflect Damage buffs, Pain Link debuffs, and any passive reflect effect — the only exception of its kind among the four forms, and the main lever the whole strategy against the Lion is built around. The practical takeaway is simple: if you have a Champion with a strong Reflect Damage buff or a Pain Link debuff in your roster, the Lion Form is exactly the matchup where it earns a slot, even if it does nothing on the other three forms.

Its three active skills:

• Annihilation Claw — hits one target twice, each hit with a 50% chance of a 1-turn True Fear; then has an 80% chance to repeat the attack against a new target, dropping 20% with each subsequent one, with damage falling by 10% on each successful repeat.
• Shred Reality — hits one target three times: the first applies a 60% Decrease DEF debuff for 2 turns, the second a 25% Weaken debuff for 2 turns (both ignoring Block Debuffs), and the third spreads both debuffs to every other enemy before hitting them as well.
• Atomizing Roar — before attacking, clears its own Decrease ATK, Decrease C.RATE, and Decrease C.DMG debuffs, ignores 50% of the target's DEF plus another 10% per debuff removed, grants an Extra Turn on a kill, and if the target survives, hits everyone else for half that damage while ignoring 100% of their DEF.

The "Predator's Feast" passive places Hunter's Gaze on the enemy with the highest DEF for 3 turns at the start of every turn, and every time that debuff is removed, it instantly triggers Annihilation Claw against the same Champion. The practical wrinkle here: fielding a Champion with noticeably high DEF is effectively volunteering them as Hunter's Gaze's permanent target, so it's worth balancing your team's defensive stats ahead of time rather than after the first painful loss.

Viper Form

The Viper Form is the most damaging over time: it methodically stacks Poison debuffs and layers of Necrosis on your team, and Necrosis hits a Champion at the start of their turn harder the more allies are already dead. The one gap in this form's immunities is a susceptibility to Block Active Skills, and that's the main counterplay to build around.

Its three active skills:

• Putrid Fang — hits the whole team and adds an extra hit if there are already dead enemies or if the initial attack kills one; has a 50% chance per enemy to land one random crowd-control debuff, excluding Sheep.
• Stinger Cyclone — calculates damage per target individually rather than as AoE; before attacking, places a Hex debuff and a 100% Heal Reduction debuff on all enemies for 2 turns, instantly triggers any active Poison debuffs on all enemies twice, then transfers its own debuffs onto every enemy under Hex or Heal Reduction from this skill, filling its own Turn Meter for each debuff transferred. This is the key detail for the whole fight against this form: the Heal Reduction lands right before the skill triggers Poison twice in a row, meaning your healers are effectively useless at exactly the moment the damage spikes hardest.
• Haze of Pestilence — steals every buff from your team except Continuous Heal, applies three stacks of 5% Poison plus a 25% Poison Sensitivity debuff for 3 turns, then extends every active Poison debuff by 1 turn and triggers them all instantly.

Betting on sustained healing to survive the Viper Form is a trap: once that Heal Reduction is active, incoming healing drops to nothing or close to it, while the damage keeps piling up regardless.

The "Deathly Contagion" passive adds one Necrosis stack to the whole enemy team for every Champion that dies — the only way to remove a stack is to revive a fallen ally, and exactly as many stacks come off as Champions return. The second passive, "Enemy of Mortality," makes revives weaker across the board: a revived Champion comes back with 25% less HP and 25% less Turn Meter than they would otherwise (someone who should return at 50% HP comes back at 25%, and anyone who should return at 25% or less comes back at just 1%), and denies one revival attempt per round outright — if several Champions are revived at once, one random attempt is simply cancelled.

With healing unreliable on this form, other lines of defense matter more:

• Block Active Skills on the Chimera is the strongest option available: if it can't use Stinger Cyclone or Haze of Pestilence, Poison and Heal Reduction never land on your team at all, and the healing problem never comes up in the first place. Ronda, beyond her use against the Ram Form, has a chance to land Block Active Skills too — one of the rare cases where a single Champion covers the key weakness of two different forms.
• Unkillable and Block Damage — effects that stop your team from dying outright. Unlike the Lion Form, where Hunter's Gaze ignores both of these, there's no such exception here, and they function normally — keeping a Champion above zero HP through the accumulated Poison and Necrosis without leaning on healing at all.
• Resistance and mass revive — the third line of defense in case someone dies anyway. Duchess Lilitu, for instance, can mass-revive fallen allies and provide healing between Stinger Cyclone's bursts — her healing works normally outside that Heal Reduction window, so it's worth treating as a backup rather than your primary plan.

Building a Team Against the Chimera

Your five-Champion lineup doesn't change over the course of the fight — you're not rebuilding the team between forms, you're picking a roster upfront that answers each form's specific weakness. Below are four real teams that either cleared all 65 turns or scored well in the competitive Chimera Clash event:

• Hard difficulty, 65/65 turns, 69.41M damage: Siphi, Gnut, Ninja, Lydia, Firrol
• Ultra-Nightmare, 65/65 turns, 308.17M damage: Nekmo Thaar, Lydia, Sulfuryion, Lady Mikage, Ninja
• Chimera Clash, 326.42M damage, 18 Trials completed: Duchess Lilitu, Lydia, Nekmo Thaar, Marius, Fahrakin
• Chimera Clash, 174.73M damage: Toshiro, Senna, Lydia, Fahrakin, Lady Mikage

The first thing that jumps out comparing these four: Lydia shows up in every single one, while the other four slots change almost completely from team to team. That tracks with everything above — Fear covers the Ram Form and Block Active Skills covers the Viper Form, and Lydia happens to combine both in one kit, which is exactly why she looks close to mandatory rather than just a lucky pick for one particular lineup. She isn't the only option, though — MaShalled is a well-known alternative for Fear, and Ronda covers Block Active Skills the same way Lydia does, so if Lydia isn't in your roster, the fix is fielding two Champions instead of one, not going without.

By role, the pattern is this: usually just one Champion in each team is genuinely dealing damage, and only one of the four lineups runs two (Toshiro and Fahrakin together). Gnut deserves a separate note here — his official role is Defense, but his third skill hits for three instances of damage scaling off the target's MAX HP and DEF, healing him for 30% of the damage dealt in return, which makes him a meaningful damage source wrapped in a defensive shell rather than a straightforward Attack-role nuker. Most of the remaining slots are Support — Duchess Lilitu, Nekmo Thaar, Sulfuryion, Lady Mikage, Siphi, and Senna all heal, speed up the team, or bring allies back rather than dealing damage; genuine damage-free Defense is really only represented by Marius, whose kit brings Turn Meter reduction immunity along with an Exhaust-style debuff that weakens the Chimera itself.

In other words, real teams that make it through all 65 turns usually field one or two Champions actually hitting the boss, while the rest of the roster exists to keep the team alive long enough to matter. There's no single "correct" lineup — the specific Champions filling the Support and Defense slots vary from player to player — but the ratio of one damage dealer, Lydia (or an equivalent) on control duty, and the remaining slots on survival shows up consistently across all four examples.