Center of the Universe

Star permanents you control have: "{t} - sacrifice
this card, add one mana of each of this card's
colors. (Colorless creates colorless mana)"
Journy Beyond - {w}{w}{u}{u}{b}{b}{r}{r}{g}{g} {t} -
Search your library for a card, exile it under
Center of the Universe.
When Center of the Universe has 5 or more cards
exiled under it, transform it.
This card can be your commander. (Version 2)
X'Thuloth, Edge of Reality 20/20 ->