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On each player's turns, their creatures attack, and some number of them may become blocked by opposing creatures. A blocked creature trades damage with its blocker, potentially killing one or both of them. An unblocked creature deals damage to the opposing Planeswalker.

{{Ability|Double Strike}} applies damage in both the First Strike and normal combat damage phases. In [[MtGPQ]], trample damage applies to both the first and second strike of a double strike creature, even if the defending creature would die from the initial First Strike damage. An attacking creature with Double Strike is not considered to attack twice per combat round; it attacks once, but deals damage twice.

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