Instant
Destroy target creature, enchantment, or planeswalker. Its controller creates two Map tokens. (They're artifacts with "

,

, Sacrifice this token: Target creature you control explores. Activate only as a sorcery.")
If an ability instructs a creature to explore, its controller reveals the top card of their library. If it's a land card, they'll put it into their hand. Otherwise, they'll put a +1/+1 counter on that creature, then choose to either leave that card on top of their library or put it into their graveyard.