Thieving Skydiver is a rare Creature — Merfolk Rogue card from The Lost Caverns of Ixalan Commander (LCC), collector number 177. Current market price: $0.27, TCGplayer market prices via Scryfall.
Kicker {X}. X can't be 0. (You may pay an additional {X} as you cast this spell.) Flying When this creature enters, if it was kicked, gain control of target artifact with mana value X or less. If that artifact is an Equipment, attach it to this creature.