The Atmosphere Factory

Crew 1
{t} Add {c}(needs crew)
{t}{x} Gain life equal to x - 1(needs crew)
If with out a crew for two turns then you can pay {4}{b}{b} to discard Atmosphere Factory, kill all creatures on the battlefield, all players discard
their hand and all players draw a new hand.
"A huge building which covered perhaps four square
miles and towered two hundred feet in the air. It
showed no aperture in the mighty walls other than the
tiny door at which I sank"