Wildfire and Ice unlocks

[DeNarr]

I played an Archmage with that ring that splits all damage into Fire/Ice/Lightning/Arcane. Worked pretty well to help with these, though the ring screwed me over when my arcane shield would pop. Ended up killing myself that way.

[Davion Fuxa]

Really, the fasted way to get these unlocks is playing Alchemists.

Debatable, I think the Wyrmic is probably faster - their underpowered Breaths which leave so much to be desired won't instantly kill enemies along with their other talents available. Nuking enemies doesn't increase the meter toward the Pyromancer/Cryomancer goals.