If an opponent controls at least four more creatures than you, Avatar of Might costs {6} less to cast. Trample (If this creature would assign enough damage to its blockers to destroy them, you may have it assign the rest of its damage to defending ...
If there are ten or more creature cards total in all graveyards, Avatar of Woe costs {6} less to cast. Fear (This creature can't be blocked except by artifact creatures and/or black creatures.) {T}: Destroy target creature. It can't be regenerated.