Birbitoaster

This card enters with X population counters.
{t}Add {w}, {u}, {b}, {r} or {g} to your mana pool.
Remove a population counter from this card: Untap this card
Whenever you cast a spell or land, place a population counter onto this card.
Whenever a spell or land is cast, you may army 2(Split all your creatures into to groups. Each group you control attack together and block together.)
This card can be your commander.