World of Warcraft OG classic. Paladins had an ability called “Reckoning”. You gained a stack every time you recieved a critical hit, and it made you deal an extra auto attack per stack. But they never thought to give it a cap…My rogue friend attacked me for nearly a day straight, to build over TEN THOUSAND stacks. The buff wears off if you instance…but it’s a good thing there was world bosses to fight…