Upgrade has same name but it's ability costs one less. Both abilities cost darkness quantums.
This is designed for synergy with devourers, so I was thinking of making the card cost earth quantums, but I left it as dark. Multiple hits per turn
might be overpowered, but I can't change it at this point as my mother navigated away from the window I was using to look up Adam Lambert. I'll fix it if that would really balance it better.
Flying weapon is a 4|4 for both.
Balancing options:
Changing card element to Earth
Making ability one use per turn
Making ability cost more than one dark quantum.
Increase cost
Decrease damage