阻滞河口

Text:

于阻滞河口进战场时，你可以从你手上展示一张海岛或沼泽牌。如果你未如此作，阻滞河口须横置进战场。
：加或到你的法术力池中。

Rulings:

• 4/8/2016 You may reveal any land card with either or both of the appropriate subtypes. It doesn’t have to be a basic land. For example, you could reveal Prairie Stream from the Battle for Zendikar set to satisfy the ability of Choked Estuary.
• 4/8/2016 Lands don’t have a subtype just because they can produce mana of the corresponding color. Choked Estuary itself is neither an Island nor a Swamp, even though it produces blue and black mana, so you can’t reveal one to satisfy the ability of another.
• 4/8/2016 If an Island or Swamp is entering the battlefield from your hand at the same time as Choked Estuary, you may reveal the other land to have Choked Estuary enter untapped.
• 4/8/2016 If an effect instructs you to put Choked Estuary onto the battlefield tapped, it will still enter the battlefield tapped even if you reveal a land card from your hand.