Ullr, the Glory Seeker

When Ullr, the Glory Seeker Enters the
battlefield, explore and explore again.
Other creatures you control have, when this card
enters the battlefield, explore.
If two or more lands entered the battlefield this
turn, transform Ullr, the Glory Seeker.
If Ullr, the Glory seeker dies, exile it instead,
and return it to the battlefield at the beginning
of your next upkeep.