Aether Behemoth

Indestructible
Phaseshift {3}{w}{u}—This creature can't participate
in combat this turn unless you pay the Phaseshift cost.
When the Phaseshift cost is paid, put X +1/+1
counters on this creature, where X is its power.
{t}: Add {w} or {u}.
{w}{u}{t}: Draw a card.