I'm having the same concern as Rutarete. It's not a new idea. It uses known mechanic and in this case even the same quanta. It should be reworked and the damage done by the ability should/has to be reduced. The only damage dealing abilities coming to my mind are poison which is slow and air-weapon combined with animated weapon or crusader and that needs two cards. I know your card needs two colors but it should be that easy to get so many nukes. I'd prefer the damage to be 1 (you can have more than 1 of it on the battlefield) but not more than two, and in that case the damage of the creature itself has to be heavily reduce. I mean that thing costs 4 quanta and has 4 attack damage, the fact it has only 1 life doesn't make up for such a strong ability in my opinion. You should change the color. However Life is maybe not the right choice (even though it's thematically) because Life doesn't have any kind of nuke and that's may be for reason.