classic :
clearly the goal would be clearing cs so i'd say a char which can keep distance
1. bliizz + charged bolt sorc can be quite good
2. hammerdin, easy to obtain resists, high dmg, can charge around and throw hammers from distance
imo ww barb isnt safe at all due to ww bug + manaburn + DE + cold dmg (@ hellcs seis) [depends on your playstyle ofc]
3. revive + CE necro is effective, safe, but slow af
4. ama, rly bad choice overall.