Talk:Xerath/@comment-217.250.72.104-20111003113715/@comment-2179912-20111003165529

0.25 is a decent number. Consider and the reverse passives, (Galio and Rammus), their numbers are 0.5 MR to AP and 0.25 Armor to AD (because you always get more armor than mr). So, 0.25 AP to armor is right, because you always build around 500 AP in any game. (this can be from 300 to 700). So, 125 armor for 500 AP is balanced imo.