Trust Ceromony

When this card enters the battlefield, each swaps life with another player of thies choice, starting with the player on you left, going clockwise.
Whenever you take damage, all other players take half of the damage you took rounded up.
If you were to be targeted by effects, you may choose for the card to also target all other players as well.
At the begining of each player's upkeep, they may pay 3 life, then they may add a card they own from the graveyard or exiled to the battlefield