Diablo III: Reaper of Souls

Gem

Each attack you make against an enemy increases the damage it takes from your attacks by 1.0% (+0.1%/Rank). Gain 25% increased damage against Rift Guardians and bosses. (Requires Rank 25)

Please be real. Please be real. Please be real. Please be real. Please be real. Please be real. Please be real. Please be real.

.....And infinite stacking. Yes. Please be real and stack infinitely.

My Whirlwind Barbarian NEEDS this.

Shoulders

Call of the Ancients gains the effect of the Ancients' Fury rune.

Now there's a worthy contender for the armor effect slot.

Belt

Your Hatred generators attack 30% faster and deal [30-40]% increased damage.

Because Kridershot builds totally needed to be made even stronger.....