Tengu format ruling
Gilasaurus
Card effect (current official text)You can Special Summon this card (from your hand). If Summoned this way: Activate this effect; your opponent can Special Summon 1 monster from their GY.
Rulings
- The effect of this card only activates when you elect to change its Normal Summon to a Special Summon. Not if it is Special Summoned by Monster Reborn, Marauding Captain, etc.
- You can use the effect of this card to change its Normal Summon to a Special Summon even if your opponent has no monsters in their GY.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Tengu forum — sourced change requests get reviewed.