Originally Posted by
Discpsycho
Some of these goals will be mutually exclusive - classes with leap abilities aren't the same one with Action Boost bumps.
This locks you into:
- Barbarian 2+: FB T2 gives +3 action boosts. FB T2 contains Sprint boost, and this also fulfills the 10% Barb runspeed requirement. Minimum 11 AP
- Dragonborn or Half-Orc: T2 gives +3 action boosts. Dragonborn gives a leap at T4, so that wins in sheer mobility. Minimum 16 AP
- Fighter 1+: Kensei gives +3 action boosts. Minimum 7 AP, but as long as you're zerging you may as well pick up Haste Boost for 10 AP total
- Artificer 2+: Battle Engineer T2 gives +3 action boosts. Minimum 11 AP
This leaves you with 32 AP (assuming no racial points) and 15 class levels to split between Fighter, Barbarian, and Artificer. Per your survivability requirement, you'll probably snag Blood Tribute, so it's only 29 more AP
For heroic clearing speed, without any other gear knowledge I'd surmise Caster > THF melee > SWF melee > repeater > TWF melee. Arcanotechnician gets Blast Rod in T4 and Lightning Bolt in C4, and Dragonborn's energy breath is another nuke, albeit Cha-based. Put 3 more points in Dragonborn T4 for +3 Evo/Conj DCs, then the remaining 26 into Arcanotechnician to maximize your electric damage.
Your class levels should be 2 Barb, 2 Fighter (bonus feat x2), 16 Arti (bonus feat x4) to maximize nuking damage. With 13 feats you'll have plenty of opportunities to pick up Dodge/Mobility/Spring Attack without neglecting metamagics. Max Int for DCs, Cha secondary if you're doing a heroic life and want the Dragonborn nuke to fare better, Dex enough for Dodge ASAP, possibly some in Str to THF until casting kicks in. You can squeeze in Spring Attack at level 4 (Barb 1 Dodge, Fighter 2 Mobility, Barb 3 filler feat, Fighter 4 Spring Attack), but there'll be a trade-off of slower leveling with delayed Arti levels
For epic clearing speed, I'm not so sure. The lack of T5 may put your DCs into an unmanageable range, but once again that's gear- and PL-dependent