Branch-Arm Lasair — guide

In short

Branch-Arm Lasair is a Rare HP-type from the Forest Spirits with Void affinity. His job is a team-wide Shield scaled off his own HP, an AoE 25% Decrease ATK and a 15% Strengthen buff. Build him in HP and Speed; Accuracy only matters for the Provoke.

Strengths

• Shield equal to 20% of his MAX HP on all allies from Logger's Bane every 4 turns — and tomes shorten that. Scales with HP, not ATK.
• 25% Decrease ATK on all enemies: two hits at 50% chance each, a real damage cut on waves and bosses.
• 15% Strengthen for 2 turns on the whole team — flat damage reduction that needs no Accuracy.
• Self-sustain on his A1: three hits healing 3% MAX HP each, roughly 9% per attack.
• Void affinity: no weak-affinity matchups anywhere.

Weaknesses

• Almost no control: a single 1-turn Provoke on a 6-turn cooldown, and it needs Accuracy to land.
• 95 base Speed — slow, so the Shield drops between cycles.
• No damage at all (892 ATK): he does not threaten anything in dungeons or Arena.
• Arena and Hard-mode ratings sit at 1-2; a 20% HP Shield is not enough there.

Where to use

Start with Faction Wars for Forest Spirits (3.5) — he solves wave survivability. Next is Hydra (3.0), where the Shield plus Decrease ATK genuinely extend the run. Clan Boss (2.5) is early-game only: he brings almost no debuffs of his own. Doom Tower (2.0) and Arena/dungeons (2.0) are leftovers, and Hard mode (1.0) is not his content.

Stats and gear

Priority: HP% → Speed → Accuracy. Ignore crit stats entirely.

• HP — 60-80k+, this is both his Shield and his survival.
• Speed — 170-200 so the Shield and Strengthen do not lapse.
• Accuracy — 150-200, purely for the Provoke and Decrease ATK.
• Sets: Perception as the default (Speed + Accuracy), Guardian to pull part of the damage off allies onto his big HP pool, Protection and Bolster if the team wants one more Shield layer.
• Relic: Orb of Transfixion.

Masteries and blessings

Go Support and Accuracy: take Invigorated and Targetfinder, then fill in the standard HP and Speed nodes. Blessings: Phantom touch if you want a bit of damage off his A1, or Nature Bounty for pure support duty.

Tombs

Book Logger's Bane first — it is his main skill on a 4-turn cooldown, and the cooldown reduction is what actually keeps the Shield and Decrease ATK up. Rootroar comes second; the Provoke is a bonus, not the reason you bring him.

Verdict

A narrow but honest support: he carries team survivability in Faction Wars and Hydra, and is a pass-through Rare everywhere else.