Kalifax, the Guile Serpent

Flying, vigilance, deathtouch
When Kalifax, the Guile Serpent enters the battlefield, simultaneously, all phased-out
nonland permanents phase in and all other
nonland permanents phase out. Until the end
of your next turn, they can't phase in.
Whenever one or more nonland permanents you control phase in, you draw a card and you lose 1
life.