Harnessed Flamesoul

Shine 4 (This creature enters the battlefield with three +1+1 counters on it. At the beginning of your upkeep, if it still has +1+1 counters on it, remove one.)
As long as Harnessed Flamesoul's power is 4 or greater, it cannot attack or block.
As long as Harnessed Flamesoul's power is 3 or less, it gains double strike and trample.