Tengu format ruling
Healing Wave Generator
Card effect (current official text)Once per turn, you can select another face-up monster you control to gain Life Points equal to that monster's Level x 100.
Rulings
- Healing Wave Generator's effect targets 1 other monster you control.
- If an effect is chained that removes the targeted monster from the field or flips it face-down, Healing Wave Generator's effect disappears.
- If an effect is chained that shifts control of the targeted monster to your opponent, you will still gain Life Points.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Tengu forum — sourced change requests get reviewed.