You focus your strength into a brutal main-hand strike meant to finish a badly wounded enemy.
On success, the target gains 3 strength stat for 20+vit/2 rounds and gains 3 weapon damage for 20+vit/2 rounds.
Abilities belong to classes and can be used by players and NPCs. Most abilities must be learned first, and some become stronger when you invest points in them. Ability scrolls let you use an ability a limited number of times, even if you have not learned it.