Underworld

Handsize reduce down to zero. (discard all cards from hand until end of turn) exile all cards from graveyards and libraries. At the begginning of each player’s turn, all players return a card from exile to the top of their library. you cannot lose the game for having no cards in your library. whenever a player cast a spell they lose life equal to that card’s mana value. If this card is in your starting hand, you may play it before the game begins.