Tengu format ruling
Treeborn Frog
Card effect (current official text)Once per turn, during your Standby Phase, if this card is in your Graveyard and you do not control "Treeborn Frog": You can Special Summon this card. You must control no Spell/Trap Cards to activate and to resolve this effect.
Rulings
- You cannot activate this card’s effect if you control a Treeborn Frog in the Spell/Trap Zone.
- If this card’s effect/activation is negated, it can activate again in the same Phase.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Tengu forum — sourced change requests get reviewed.