Arcane blast is just better than this right now in tempo mage. Dealing 2-3 damage for 2-3 mana is just awful. Scaling on this is awful overall, 1 mana for 1 damage is below curve period. You have the flexibility here bit it's not worth much on damaging to minions only. Deal two for each mana to a minion would have been fine imo, and it wouldn't even be broken, they are too conservative with this. Yeah, it have been strictly better than cards like flame lance but that card is awful anyway. Remember that you have to fill your curve to use this card optimally, so it wouldn't be all that strong. Sure, you can deal 6 for 3 mana and do something else too, IF, you can use your mana efficiently. That would have been an interesting card, this is just mediocre. I like the idea though.