From Pathfinder Society Scenario #2-24: Breaking The Storm: Parting Clouds, which isn't enabled.

Chained Drained Troll

CREATURE 4

RARE LARGE CHAOTIC EVIL GIANT TROLL

Variant troll

Perception +10; darkvision

Languages Jotun

Skills Athletics +10, Intimidation +10

Str +4, Dex +2, Con +6, Int -2, Wis +0, Cha -2

AC 19; Fort +15, Ref +10, Will +6

HP 96, regeneration 20 (deactivated by acid or fire); Weaknesses fire 10

Regeneration 20 (Deactivated by Acid or Fire)

This monster regains the listed number of Hit Points each round at the beginning of its turn. Its Dying condition never increases beyond Dying 3 as long as its regeneration is active. However, if it takes damage of a type listed in the regeneration entry, its regeneration deactivates until the end of its next turn. Deactivate the regeneration before applying any damage of a listed type, since that damage might kill the monster by bringing it to Dying 4.

Speed 30 feet; Cannot Move

Melee Jaws +13 (reach 10, unarmed), Damage 2d10+3 piercing

Pathfinder Society Scenario #2-24: Breaking The Storm: Parting CloudsOGL