Caressa

What — The "Grappler Queen" (aka the Grabbler, the Needy One): a 30-ft-tall sentient centipede-humanoid hybrid whose lower body is a mass of ~10,000 grafted hands; a warlock-style spellcaster who commands grapplers as her offspring.

Threat — Deadly. A multi-session boss requiring multiple allied factions to bring down; very high HP (party had dealt ~177 damage and she was only "bloodied," still near max) Session 31.

Observed abilities (all Session 31 unless noted; first encountered Session 25)

• Spellcasting: 5× 6th-level spell slots and no slots between 1st and 5th level. Known spells seen: Finger of Death (necrotic; GM noted "+30"), Booming Blade (6 damage hit).
• Tail Swipe (AoE): CON save; 40+ damage; sweeps and flings targets (knocked Lash to high ground "like a golf club").
• Multi-pinch (multiattack): swarm of hands, ~10 individual 1-damage pinches (also seen as 10+10); each pinch is a separate hit, so it triggers ~10 death saves against a downed creature — effectively an instant-kill on anyone unconscious in melee.
• Boulder Toss: picks up and throws a ~1-ton boulder at a line/cluster; up to 61 potential bludgeoning; DEX or CON save (CON reduces by 2× the save).
• Rolling Thunder (legendary action): curls into a giant wheel and rolls in a straight line, then ricochets 45° off a solid object into a second line, hitting everyone in the path; knocked Jex and Silithane unconscious. "Nothing you can do to stop" it once it starts.
• Legendary actions: uses several per round mid-fight (Rolling Thunder, Booming Blade, etc.).

Resistances / immunities / weaknesses — Has unspecified damage resistance (GM flagged her effective HP was higher than raw numbers) Session 31. Shrugged off poison — passed the save on Wetzel's green poison (3d6) and took nothing; GM noted the poison works on small creatures, not one her size.

Tactics & behavior — Crowd control first: tail-swipe/whirlwind to scatter clustered enemies, then scurries to a single target to multi-pinch. Leans on legendary actions for repeated turns. Vanity is her weakness — she fusses over her appearance, and a single scratch to her humanoid chin made her cry and surrender. Her spellcasting is fragile to spellbreakers: Fenric opened invisible and destroyed 3 (then all 5) of her 6th-level slots with Spellbreaker, gutting her offense — treat Fenric / slot-destruction as her hard counter.

Disposition to the party — Hostile. Defeated and subdued non-lethally so she could be jailed.

Status — Alive but captive: surrendered and was locked in a cell by Malifax after the boss fight; last seen Session 31.

SUMMARY: Deadly grappler-queen boss; vain, spellbreaker-vulnerable; defeated, subdued, and imprisoned alive.