User blog comment:Fistful of Force/DFG and Eve nerf numbers/@comment-79.175.86.102-20130116221814

I really don't know why they changed DFG since it was good. I remmember using it as my core item since it gave mana regen, cooldown reduction, ability power and an insane active.

They could just change Evelynn's ultimate a bit and it would be fine but no, they had to change an item and ruin many builds that incorporated it.