Over the Edge is a common Sorcery card from The Lost Caverns of Ixalan (LCI), collector number 205. Current market price: $0.22 (foil $0.33), TCGplayer market prices via Scryfall.
Choose one — • Destroy target artifact or enchantment. • Target creature you control explores, then it explores again. (Reveal the top card of your library. Put that card into your hand if it's a land. Otherwise, put a +1/+1 counter on that creature, then put the card back or put it into your graveyard. Then repeat this process.)