Korashi, Phyrexian Emmisary

Whenever Korashi, Phyrexian Emissary attacks, choose target opponent at random, then choose a number one through three at random. If you do, put that many -1/-1 counters on each creature that player controls.
Partner (You can have two commanders if both have partner.)
It has been sent out to find the survivors. They were given a chance, but now they must crumble.