Talk:Ezreal/@comment-4852459-20140606175513/@comment-7967732-20140621020832

It's no "200 proc damage". Ez has about 1000 mana at lvl 18. Add IBG & Muramana and it's about 2500. That equals 75 extra damage on each Q (or AA) (let's pretend Reaver will maintain his mana at max forever - though it isn't true).

BotRK is the better scaling item, and despite being 1100 gold more expensive, it totally worths its price if the game ever last over 30 minute mark (which most of non-feed matches will).

In term of damage, the build will never lack if you finish with IE (which synergize well with BotRK). If you opt for a defensive item, then all Ezreal build (Tri Force included) will lack damage.

Have a look on probuilds.net (just notice the last 2 days, it's when the new patch applied) and see how often ADC pros build BotRK on Ez (and how occasional did they go for Manamune). Manamune is not bad, but way dated in a mid game-heavy meta (where it can't transform soon enough).