Originally Posted by Ace94
Getting crit runes is really not that bad. I'll let you know my common games before level 30 with Yi were on average about 30/11/15 something like that. But thanks will take it into consideration.
No, getting crit damage runes is bad. Okay, sure. You might have had games where you did well with them, but you'd do even better if you used armor pen, because the crits you get will do more damage, and your non crits also do more damage.
The only time crit damage becomes useful is late game. By late game, your crit damage runes edge out armor pen a bit, but even then, does it really justify a weaker early-mid game just for slightly bigger red numbers later?