Teferi's Puzzle Box
Casting Cost:
At the beginning of each player's draw step, that player puts the cards in his or her hand on the bottom of his or her library in any order, then draws that many cards.
$ 000
Underground River
: Add 1 to your mana pool.
: Add or to your mana pool. Underground River deals 1 damage to you.
Vampiric Tutor
Search your library for a card, then shuffle your library and put that card on top of it. You lose 2 life.
Worldly Tutor
Search your library for a creature card and reveal that card. Shuffle your library, then put the card on top of it.
Wrath of God
Destroy all creatures. They can't be regenerated.
Zombie Master
Other Zombie creatures have swampwalk. (They can't be blocked as long as defending player controls a Swamp.)
Other Zombies have ": Regenerate this permanent."