User blog comment:TNickxx/Ryze, Varus patch/@comment-3493296-20120502145050

Never build glasscanon Ryze. His ranged got nerfed, so he has to build tanky to overlive that. And you still deal more dmg with tank Ryze anyway, so why?

http://leagueoflegends.wikia.com/wiki/User:NicknameMy#Ryze

After that change, glascannon Ryze would be viable. Overall more Range and higher AP-ratios than mana ratios.