Inspired by blessed hammer from diablo 2 i whould love to be able to support my projectiles with this idea.also when you have multiple projectiles i think that the angle of the projectiles should be fixed, if you have 2 projectiles, one starts from the north and one from the southi think the formula whould be like

Rarity: Gem Spiral Projectiles -------- Support, Projectile Level: 1 Mana Multiplier: x% Experience: x/x -------- Requirements: Level: x -------- Projectiles from supported skills spiral outwards. x% Less Projectile Damage x% increased Projectile Damage per Level x% increased Projectile Speed per Quality -------- This is a Support Gem. It does not grant a bonus to your character, but to skills in sockets connected to it. Place into an item socket connected to a socket containing the Active Skill Gem you wish to augment. Right click to remove from a socket.

I really like this skill idea. More projectile speed would equate to more revolutions. Very nice quality idea. But it seems insanely overpowered. We have to presume that projectiles won't automatically gain 100% pierce so ideally you would do... ice spear + pierce + faster projectiles + increased aoe (make spiral bigger) as the most ideal way to benefit from this gem. There are a lot of other problems with this skill though from a conceptual stand point though imo. What would lmp do? Would it delay the casting of the 2nd/3rd projectiles? Then you would have tons of spells stacking on top of each other (kind of like spectral throw). Could be interesting but really op. Would it simply cast all three side by side? Then you kind of get an 'increased aoe' effect for free. Again could be interesting. How do you handle skills like freezing pulse, ek, split arrow? Fp would look silly spiraling. Ek would have the the same issue as lmp/gmp just as split arrow would. I just think there are too many abuse cases where you would be able to stack projectiles up on top of each other creating a massive death whirlwind where anything that enters it would get perma stunned. I could see it being very easy to stack up stun chance on a skill like spectral throw or crit chance on ice spear and literally perma-freezing mobs in an aoe, like cold snap but way better.

I'm all for it but it shouldn't be a support skill but an active skill. It would look weird with arrows for example. It could be called spiralling weapon (similar to spectral throw but only works for 1h weapons).