Ghostly Ivory Pounder

{w/b}: If {w} was spend to pay this ability cost, add an
Harmony counter on this creature , it gain
defender until the end of turn. If {b} was spend to
pay this ability cost, remove an Harmony counter
from this creature, it gain deathtouch and flying
until your next upkeep. Activate this ability only
once during your turn.
Ghostly Ivory Pounder get +1/+1 for each
Harmony counter on it.