Undersea Cave Troll
The Drowned Ruins Nightmare #8 (x2)
Enemy
(36) 3 7 1 10
Troll.  

For each point of excess damage dealt by Undersea Cave Troll (damage that has been dealt beyond the remaining hit points of the character damaged by its attack) discard 1 resource from one of your objective-allies or from one of your heroes' resource pools.