Warlord's Bloodlust is extremely broken

(This isn't a Yasuo/Tryndamere related thread)

So, I've been playing around in custom games trying to get a feel for some of the Marksman changes. Once you have + / / you are literally set for sustain. I've stood in massive waves of minions and sustained back up to full health just with Bloodlust. If I go and get too and reach 70% Crit Chance, there's literally no need to build a sustain item. None.

Caitlyn can restore so much health on minions because of this + her headshot passive. She can easily hit 1500+ damage on minions and restore 200HP.

Riot either needs to increase the cooldown or lower the amount on crit.