I was playing 
today in URF, building spell vamp as always, and noticed that Ezreal's Q (mystic bolt) doesn't proc spell vamp. I don't know if this is intended or not, but his Q is a spell and applies on hit effects.. rito fix plz
It's intended, his Q doesn't count as a spell, but more like a "buffed basic attack."
Pretty sure cause his Q is a skill and not considered a spell since it procs off of AD. Also Urf has limited healing in the beginning of the game ramping up as the match progresses.
His Q deals physical damage, it wouldn't proc spell vamp unless you had a Lich Bane.
{quoted} but his Q is a spell and applies on hit effects
Someone needs to look up what spellvamp and on-hit effects are. second sentence bro. http://leagueoflegends.wikia.com/wiki/Spell_vamp
his Q doesn't proc spell vamp, it procs life steal.
It applies on-hit effects not on-spell. VERY IMPORTANT DETAIL
