Mission Control, Houston

Whenever you planeswalk to Mission Control
and at the beginning of your upkeep, reveal cards
from the top of your library until you reveal a creature card. Cast it without paying its mana
cost. Put the rest of the cards revealed this way
on the bottom of your library in random order.
Whenever you roll (chaos), creatures you control
gain Battle Cry until end of turn. (Whenever a creature with battle cry attacks, each other attacking creature gets +1/+0 until end of turn.)