When I was developing my Djinn idea, people used to say "lightning on a stick is OP". Now this can do 2 lightning per turn? Looks OP.
What little upgrade, hmm? -1 cost, +1/+1 AND double skill. If an offensive skill like that is doubled, card should cost more and have smaller stats.
Also, Plasma in entropy? I could think about fire, or aether, but entropy? Sounds strange.