At 20th level, whenever the cavalier makes a charge attack while mounted, he deals double the normal amount of damage (or triple if using a lance). In addition, if the cavalier confirms a critical hit on a charge attack while mounted, the target is stunned for 1d4 rounds. A Will save reduces this to staggered for 1d4 rounds. The DC is equal to 10 + the cavalier's base attack bonus.
