Secret Lair x Avatar: The Last Airbender | Everything Changed

Nonbasic lands are Mountains.

You may put a green creature card from your hand onto the battlefield.

Lightning Bolt deals 3 damage to any target.

Repeat the following process X times. Each opponent loses 3 life unless that player sacrifices a nonland permanent of their choice or discards a card.

{T}: Add one mana of any color in your commander's color identity.

{T}: Add one mana of any color that a land an opponent controls could produce.