You really think that in a real match they're gonna sit back and let you get 100 
quanta? By that time you'll be near death or deckout.
Read the notes, these sparks are artificial and don't trigger death effects.
I didn't notice the notes about death effects. I guess that means we simply ignore that bit. And, if you looked at my table, you don't need 100 quanta. You need 54 quanta for 2, or 39 for 3 cards in hand. You can get 39 quanta in only a few turns hiding behind a phase shield, and then kill them in a single turn.
Your table is irrelevant. Why would you go as far as to do the math is you have 6 of these as 1-2 would fill up your feild?
1-2 wouldn't fill up your field. You have 23 creature slots, each one does 5 damage and so you only need 20 creatures (assuming no shield) to kill them in a single turn. If you have other creatures then you're already doing some damage anyway and you don't need as many. Since we're talking aether, a few phase recluses will provide plenty of damage for this spell to kill them faster.
As you yourself said, "1 damage for 1 quanta upped". So Extreme Voltage is 10 damage for 10 quanta, Fire Lance is 3 damage for 10 quanta, Ice Lance/Siphon Life are 2 damage for 10 quanta. If you look at my table, you'll see that the "quanta to kill" is massively lower than other damage spells for the same number of copies of the card in hand. Even with a diamond shield in play, Extreme Voltage is 4 damage for 10 quanta. The only way this ability would be balanced is if both versions summoned sparks. Then we have 6 for 10 with no shield, 4 for 10 with 1 point, 2 for 10 with 2 point shields and none with 3 point or reflective shields.
Or perhaps the card could just be a cheaper fractal ball lightning and fill up your hand.
