Advanced format ruling
Black Potan
Card effect (current official text)If you control a face-up Tuner monster, this card cannot be destroyed by battle. When a face-up Tuner monster(s) you control is removed from the field, gain 800 Life Points.
Current rulings for this card are maintained by Konami.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Advanced forum — sourced change requests get reviewed.