Thieving Skydiver is a rare Creature — Merfolk Rogue card from Magic Online Promos (PRM), collector number 83758.
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.