Get Lost is a rare Instant card from The Lost Caverns of Ixalan (LCI), collector number 333. Current market price: $3.23 (foil $4.76), TCGplayer market prices via Scryfall.
Destroy target creature, enchantment, or planeswalker. Its controller creates two Map tokens. (They're artifacts with "{1}, {T}, Sacrifice this token: Target creature you control explores. Activate only as a sorcery.")