I'd LOVE playing this on an opponent's unupped chrysaora's.
At first I thought this was only viable to play on an enemy, but then I thought of this aether/gravity combo:
Fractalled Ball lightnings, + this, + a momentum (and a quint if you're eager). Ouch.
Just to drool a bit, let's try a best case scenario:
Your hand consists of the following: 4 ball lightning, momentum, fractal, quintessence, singularity.
First play 4 ball lightning, play momentum, fractal, ball lightnings again, then singularity. Next turn: quint.
That's a 46/1 unstoppable unkillable creature. Immune to all CC including shields. WEEEEE!
Cost: 6
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12
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OK, this is incredibly unlikely, but nevertheless it's a nice thought. It made me smile. =)