User blog comment:Degritone/Zero, the Machinegun Mage/@comment-7709681-20141102043012/@comment-7709681-20141102150434

It doesn't matter that has up to 965% AP as damage output (Which, by the way, doesn't justify the lack of base damage; even if it doesn't have base damage, such ratios on each ability is too much), if it doesn't have base damage, again, or you amass AP quickly or you'll do nothing, and nothing seems likely, because even you autoattack doesn't help you, thanks to both the movement penalty for the autoattack's projectiles and the damage reduction.

Is underpowered, not because of numbers (Which you don't need to give me, no explanation of its value, is indeed high), but would have such horrible early-game that wouldn't be able to ramp up into the later-game, the only cheap form to increase damage would be to get On-hit effects, to take advantage of the 2.5 AS from the beginning, but even that is an abusive case, as much as the almost 1000% AP built into the kit.