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How is it interrupted?And yes, Demonic Blockade negates Sites because it says that it negates Sites.
That is the correct ruling for how things are. I've heard a few people discuss whether that is how the rule SHOULD be. I think it would be an appropriate rule change to say Interrupt the Battle interrupts all ongoing abilities in battle. I think that is a more intuitive rule and how I've seen many people assume it works. If a card is placed in battle then it faces the risk of whatever affects that battle; if you discard or remove all cards in battle then the site or artifact is discarded/removed. So make ITB consistent with those rulings.
I'm just proud to see TKP all growed up and pwning trollz :tear:
Say the rule was changed. If say Promised Land was interrupted, would that then count toward one of its uses?