| Index | Table of Contents | Terms |
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Terms - X | |
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When you see in a
mana cost or an activation cost, you get to choose the number.
Playing a card with
in the mana cost:
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Earthquake is a card that
costs  .
When you play Earthquake, you choose a number for X. If you pick three,
for example, Earthquake deals 3 damage and costs  .
In Magic Online, you can play Earthquake
when you have a single
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Playing an ability with
in the activation cost:
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Crypt Rats is a creature
with an activated ability that has
in the activation cost. When you play the ability, you choose a number
for X. If you pick two, for example, Crypt Rats deals 2 damage and you
pay  .
In Magic Online, you play the activated ability of Crypt Rats by right clicking on the card and selecting "X damage to each creature and player." The game then prompts you to pay for X. Until you click the OK button, any mana you add to your mana pool will automatically be added to the value of X.
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