Best Builds

[Nystul]

I found a strange bow of thunder with my warrior. Useless. And that was on regular difficulty/hell.

Pretty much. Warriors and sorcerers only get half as much base (non-weapon) damage when using a bow as they do with a melee weapon. When you combine that with the slower attack speed and chance to hit issues, it is a pretty toothless attack. Thunder and burning can do big damage, but only to vulnerable enemies who could be killed easily with spells.

Even for a rogue, a bow is more effective as a companion to spell attacks rather than as a primary attack. Bow attacks are perhaps a bit underpowered in Diablo. They can still get the job done, especially for cautious sneak around type players.