Before Antimatter, this definetely would be considered OP.
And it kind of still is IMO. Maybe it should be an immolation like spell (only useable on your own creatures)
And in that case you could have it produce an alternate type of quanta to create synergy with another element.
I disagree.
Most high attack creatures also have low health, so a cheap Lightning would probably be able to kill it; in other words, reducing its attack to 0, generating 1 death effect, AND lobotomizing it and removing its passive skill. Lobotomize aside, Lightning is a 2
or 1
card that reduces its attack to 0 and generates 1 death effect. So, technically, you're generating (ATK-1)/2 death effects for 5
and 4
, which isn't that OP imho.