Alvera, the City of Roulette

Alvera, the City of Roulette, enters the battlefield tapped.

{t}: Add {w}, {b}, or {r}.

{2}, {t}: Flip a coin. If it's heads, you win. Each other player loses 3 life, you gain 3 life for each player who lose life this way and draw a card. If it's tails, you lose. You lose 3 life, and each player gains 3 life and draws a card.

"In Alvera, every game is a wager, and every wager is a step closer to fortune or the grave."
— Orath, the Mana Seeker