L'harborg, Resentful Roots

As L'harborg enters the battlefield, sacrifice it
unless you pay {2} for each time you've played it
this game.
{1}, {t}: Add {u}{b}, {u}{r}, or {b}{r}.
{u}{b}{r}, {t}: L'harborg deals 4 commander
damage to target player.
L'harborg can be your commander.