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Aetherstorm Roc
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2WW
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Creature - Bird
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Flying
  
Whenever Aetherstorm Roc or another creature enters the battlefield under your control, you get E (an energy counter).
  
Whenever Aetherstorm Roc attacks, you may pay EE. If you do, put a +1/+1 counter on it and tap up to one target creature defending player controls.
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Illus. Scott Murphy
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3/3
 
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