Sans, Final Defender

Indestructible, hexproof, deathtouch
As long as you control Sans, Final Defender and
no other creatures, you can't lose the game and
your opponents can't win the game. This
creature can't be sacrificed.
Whenever Sans, Final Defender attacks, the
defending player gets 2 poison counters. At any
time, a player may remove a poison counter and
lose 1 life.