You must remember this card

{t}, exile this card, start a mini-game with another deck you start that game with 10 lives
and before drawing your beginning hand,
search your library for 4 land cards and 1 permanent card, put those cards onto the battlefield as you start playing. the winner of
that game wins 10 lives and all other players
lose 5 lives. This card cannot be cast from outside of the game.