Tengu format ruling
Spiritual Forest
Card effect (current official text)Each turn, the first face-up Beast, Beast-Warrior, or Plant-Type monster you control that would be destroyed by battle, is not destroyed.
Rulings
- If the effect of "Spiritual Forest" is resolved once during a turn, it cannot be resolved again even if "Spiritual Forest" is negated and then stops being negated in the same turn.
- If a face-down Beast-Type, Beast-Warrior-Type, or Plant-Type monster you control is attacked and flipped face-up by battle, the effect of "Spiritual Forest" is applied.
- You do not choose when to activate this effect.
- It automatically activates the first time the appropriate type of monster would be destroyed.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Tengu forum — sourced change requests get reviewed.