Choose target creature. You get EEE (three energy counters), then you may pay any amount of E. Harnessed Lightning deals that much damage to that creature.
Illus. Chris Rallis
MYTHICSPOILER.COM THE CYCLICAL MTG SPOILER
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KHANS OF TARKIR 
COMMANDER 2014
FTV: ANNIHILATION 
SPEED vs CUNNING 
MAGIC 2015 
CONSPIRACY 
MORE SETS
