Appa, Steadfast Guardian 10 (Avatar: The Last Airbender) - Foil Condition:DMG If a land or Bird

If a land or Bird you control entering the battlefield causes a triggered ability of a permanent you control to trigger

reveal them

Whenever Myrel attacks

you may counter target spell unless its controller pays {1}

You may also use this Ability if this Pokemon is in the Active Spot and is Knocked Out by damage from an attack from your opponent's Pokemon

Appa, Steadfast Guardian 10 (Avatar: The Last Airbender) - Foil Condition:DMG If a land or BirdFlash Flying When Appa enters, airbend any number of other target nonland permanents you control. (Exile them. While each one is exiled, its owner may cast it for {2} rather than its mana cost.) Whenever you cast a spell from exile, create a 1 1 white Ally creature token.