Replacing Deathfire's grasp

This removal has been buried by other teams and additions, and most have probably forgotten about it, but that doesn't mean it didn't happen...

I have a friend who is a mid lane mage main, and has complained A TON about the loss of DFG. I can understand why. It gave mages another spell in their burst combo, which then amplified their burst combo. This was extremely potent, and probably over powered. But the problem is that it was so core on so many mid laners, Rito needs a replacement item.

What I don't know is which aspect of the active was more devastating: the massive % health damage, or the magic damage amplification? I want to say the latter, becuase it probably did more damage over all then the former, but the % health probably helped in taking out the bruisers durring teamfights. Rito needs to figure out which one it was, then give us the other. If both were too much of an issue, make a weaker version. Just removing it was too much of a loss for mages, who were already trying to keep up with the extremely mobile assassins creeping into mid lane.

Rito, pls...