Dolmen of Yig

Dolmen of Yig can be your commander. If it is,
it's red and blue.
At the beginning of your upkeep, if Dolmen of Yig is in your command zone, put it into play.
{t}: Reveal cards from the top of your library until you reveal a nonland card. Cast it by paying its mana cost reduced by {x}. Flip X coins; if you lose more than two, target opponent gains control of it, chooses new targets, and may exile it.