Grak, Force Absorber

Partner (You can have two commanders if both have partner.)
At the beginning of your upkeep, you may move
any number of +1/+1 counters from target
creature you control onto Grak, Force Absorber
As long as Grak, Force Absorber has a +1/+1
counter on it, it has all abilities of each other
mutant creature with a +1/+1 counter on it.