Wow. Anyone comparing Severe Rainstorm to Cart Canon is mentally ill.
Ignoring the exponential multiplier for INT in the cart canon formula, we're looking at 700% modifier, limited by aspd and cast time. With a removable cast time and an easy to up aspd from mjolnir, AGI, Adrenaline Rush, Medal of Honor, etc, we have a potential ceiling on DPS of 700 * 4 (assuming 4 hits/second with minor woe lag, and for the purpose of comparison next, we'll look at 5 second DPS) * 5 = 14,000% over 5 seconds. Severe Rainstorm at job 50 and 160 DEX, 100 AGI does 6840% over 3 seconds with a 5 second skill-specific cooldown, meaning 6840% over 5 seconds. The exponential INT part of the Cart Canon formula actually makes the 700% a lot stronger than you'd normally expect from 700%, but we're going to set that aside from now. You're looking at Cart Canon doing more than twice the DPS of Severe Rainstorm. Severe rainstorm has a bow and an interruptible cast time. Genetics get a shield and a non-interruptible cast with Mjolnir. This is also ignoring the high ATK on mjolnir that will again, trump the hell out of any ATK a performer has. The reality is the skill does something like 3-4x the DPS of even a 150/50 Performer who is sacrificing their shield (and frankly will have trouble completing cast unless in a precast or sacrificed by a crusader-type) and has a full combat build. This is far from fair. Wise people like Doddler only suggested reducing the exponential rate of fire on this skill to make it 0.3 seconds with sacriment and a mjolnir, forcing no more than 3/sec shots and a little chance to have it interrupted. This provides a ceiling of 10,500% over 5 seconds, whih is closer to 2-3x the DPS of Severe Rainstorm (which can possibly be defended by the prestige of the god item on the genetic. Still seems high to me given the INT formula). Personally I like the 0.4 sec cast after sacriment so that it'd be around 8750%/5 second DPS.
I don't even know what to say