[{quoted}](name=Malicious Metal,realm=EUW,application-id=3ErqAdtq,discussion-id=9M4z9JGz,comment-id=00010000,timestamp=2017-01-17T16:19:47.690+0000)
The ferocity tree should augment that sustained damage champion's play styles.
Like, old furor boots or something.
It should add/enhance a play style or allow for some other benefits.
Well, worth considering I suppose.
One keystone that grants In-Combat regeneration of some kind, possibly with a reduced effectiveness against minions.
Maybe a stacking movespeed buff each time you basic attack an enemy champion? Could be workable, but I guarantee that Ezreal would manage to get it nerfed.
Perhaps an ability that gives you vision (not true sight) on damaged targets? That would help a ton with sustained damage patterns without actually adding any damage. Burst damage patterns don't mind so much when someone tries juking away since you do your burst and then it's over. But sustained damage really wants to keep that sight going.