User blog comment:Emptylord/Champion reworks/Rammus the Guardian of the Sands/@comment-6292556-20160522205237/@comment-3974211-20160524051515

Powerball applies a knockback on a per-target cooldown as part of E's passive, and successfully Ramping into someone will also trigger a Diana's Moonfall like vacuum.

The lure-enemy-away theme is in deed interesting, but I'm really not sure it's appropriate for a champion's whose current iconic feature is his Powerball. I mean, Rammus would totally rock Smite's Khepri with the "Rammus barrels forward a fixed distance, damaging all enemies he passes through. If Rammus collides with a champion, he will and slowly walk them back along the path he came for X seconds." (Think Thresh's Hook, except Rammus is the hook.) Alternatively it could just be "he will them", but I honestly don't think taunt suits Rammus theme with either kit; and I don't think people would except a brief roll animation as a substitute for an actual powerball.