Masumi, the Unrelenting

Decompose 1 (This creature enters the battlefield with a +1/+1 counter on it. At the beginning of your upkeep, remove a +1/+1 counter from it.)
Undying (When this creature dies, if it
had no +1/+1 counters on it, return it to the battlefield under its owner's control with a +1/+1 counter on it.)