Edison format ruling
Snatch Steal

Card effect (current official text)Equip only to a monster your opponent controls. Take control of the equipped monster. During each of your opponent's Standby Phases: They gain 1000 Life Points.
Rulings
- Your cannot select your opponent's face-down monster.
- If you equip your opponent's monster with Snatch Steal, and later your opponent equips the same monster with Snatch Steal, your opponent gains control of the monster.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Edison forum — sourced change requests get reviewed.