Shimmersteel Dragon

Shimmer {3}{r}{r} (Anytime a creature you control becomes blocked, you may pay this creature's shimmer cost. If you do, return the blocked creature to your hand and put this creature from your hand on the battlefield tapped, attacking and being blocked by all creatures blocking the creature you returned to your hand as long as the blocks remain legal as this ability resolves.)
Afflict X where X is the number is the number of creatures your opponents control.