Tengu format ruling
Aegis of the Ocean Dragon Lord
Card effect (current official text)Until the End Phase, face-up Level 3 or lower WATER monsters you control cannot be destroyed by battle or by card effects.
Rulings
Until the End Phase of this turn, face-up Level 3 or lower WATER monsters you control cannot be destroyed by battle or by card effects.
- You can still activate this card even if you control no face-up Level 3 or lower WATER monsters at the time.
- This effect is applied until you choose to end it during the End Phase.
- This effect applies to all Level 3 or lower WATER monsters you control, even ones that you Summon after this card’s resolution.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Tengu forum — sourced change requests get reviewed.