Sure, buffing your other party members is cool. But what if you would prefer to instead debuff your opponents? You could help set up for the killing blow from your party mates. That's exactly what the Ruinblade is a master of. It's a new character class for Pathfinder that's available from Silver Games.
From the website:
Tired of buffing your allies? Why not curse your foes instead? The Ruinblade is a unique class which debilitates her opponents, allowing your group to put the screws to your enemies in a variety of ways.
Included, besides a new 20 level class, are class archetypes, and new feats to add a new way to turn the tides in battle to your existing character!
Compatible with the Pathfinder roleplaying game.