It's actually called an Inspiration point. Factotums get a certain number of them per encounter that they can spend to do all sorts of cool stuff - basically action points turned up to 11, that refresh. At low levels, they can boost attacks, damage, saves, skill checks, or AC. As a factotum gets higher in level (higher than E6 allows, I think), they can spend points for sneak attack dice, turn undead or heal wounds like a cleric or, ignore spell resistance and damage reduction with their spells/SLA's, get extra standard actions, ignore killing blows, or outright mimic other classes's class features for short durations (at level 19, basically the capstone). Its a fantastic class, balanced by the fact that everything it can do is at about 50-75% of strength that a class focused on that role would put out.<br/><br/>The class itself is in It's Also Not Outside (AKA Dungeonscape). Co-written by the<del>minor deity</del>webcomic artist Rich Burlew, the book is definitely worth a read.