Hi
,
Classic builds of any sort cannot be pure builds with full damages unlike as expansion after characters get expensive gear. Classic characters should care for hybrid builds so they can get max. kills per area except if another characters join the game to kill an unkillable enemy that keep him stuck somewhere. For example, if we take the most popular characters:
1. Sorceress (Orb/nova hybrid build can work fine for classic because Nova doesn't even have an added synergy and Orb only has a synergy, 1 point in cold mastery is enough)
2. Psn builds of any sort (Psn Java, Psn Necro) can work fine too for classic characters because only a few synergies too
3. Hdin (Multiple synergies but he can solo many runs including good xp, so his skills aren't really a problem)
Have fun in your journey !