Wayward Planet

Wayward Planet enters the battlefield tapped.
{t}: Add one mana of any color in your
commander's color identity. When that mana is
spent to cast a creature spell that shares a
creature type with your commander, scry 1.
(Look at the top card of your library. You may put
that card on the bottom.)

"Master? Because someone erased it from the archive
memory." - Youngling