Resting Shadow

Resting Shadow enters the battlefield with
15 ice countern on it.
At the beginning of your upkeep, remove an
ice counter from Resting Shadow.
Resting Shadow can't attack
or block as long as it as ice counter on it.
{t}: Add {b}{r}{g} to your mana pool.
Atfer the last ice counter is removed:
Trample, Reach