Been a while since WC3 was mentioned

[Emu]

I've built a pretty sturdy Orc ranged force by combining the Alchemist, the TC, and a Shadow Hunter. Two tanks and a healer. Not to mention that if you max out the Alchemist's Chemical Rage skill and put Bloodlust and Endurance aura on him, combined with his ridiculously massive damage (2 Giant Strength Belts will put him at nearly 100 damage pretty early) he can take out a lot of units on his own.

135% + 40% + 35% + 70%(if you're fortunate to have an Undead ally with Unholy Frenzy) = 280% increased attack speed. 210 if you don't have an undead ally. It makes him attack about 3 times faster than the Demon Hunter.