Warrior: None (However long their weapon can reach.)
Mage: Storm Cloud (28.3 feet AOE; max 175% damage; also may deal 10 poison damage)
Archer: Normal Attack (30 feet), Homing Arrow (however far they feel like going; max 200% damage)
Gunman: Normal Attack (33.3 feet), Grenade (10 feet (tested range when thrown right), Max 900% damage, can throw three at once), Coin Shot (same as normal attack; max 300% damage)
While mages too are affected by goshdang Homing Arrow, at least they got AoE by their side. Warriors are affected by Homing Arrow the most due to, well, having no ranged option still. This is harder to deal with now when you gotta deal with archers shooting green orbs everywhere like they're using aim-assist (granted Kingdom Hearts had it too in the form of the Lock-On feature, but its much more simplified than this), not to mention that its hard to get loot legitimately or otherwise when you got an archer being a litterbug.
That's why I'm bringing back shurikens:

As we all know, skill damage gets factored in last in the damage formula, minus passive and active buffs of course. I originally suggested 30-50% damage for the skill, but I think I'll nerf it just a tiny bit...
Skill: Shuriken
Range: 20 feet (halfway between a grenade and an arrow)
Skill Levels: 3
Skill Damage: 20% + 10% per skill level (Max: 40%)
Skill Cost: 0 MP (MP seems to scale linearly per skill level)
I am iffy about the skill cost, though. Part of me wants to make it cost no MP because I don't think people would be fond of using MP as a warrior, but another part of my believes just having 1 MP in there should reduce spammability alone.
Oh, the shurikens? I think they should cost $2 each, right between normal ammunition and grenades. Yeah.
Not sure what to do about mages, though. Robby seems a little bent on making them a support class from what I can tell from their skill tree, but the community is a bit too small to see their support potential. Hmm.