Moose, The Goodest Boy

Companion — No card in your starting deck
has more than one of the same mana symbol in
its mana cost. (If this card is your chosen
companion, you may put it into your hand from
outside the game for {3} as a sorcery.)
{t}: Add {w}{u}{b}{r}{g}. This mana can't be spent
to pay generic mana costs.