Shamble Host

Other creatures you control gain +1/+1.
At the beginning of each upkeep, roll a six sided die. If the roll is even, put a +1/+1 counter on Shamble Host. If it is odd, Shamble Host cannot attack or block until end of turn.
One of the true horrors of the multiverse, the Shamble Host grew with each second that passed. Swelling as the death count of each battle rose.