What I feel would be most appropriate:

Jump
- C/D reduced to 30s
- Potency increase to 250

Power Surge
- C/D reduced to 30s

Dragonfire Dive
- C/D reduced to 60s.
- Potency increase to 300

Plebotomise
- Potency increase to 200
- DoT potency increased to 30

Chaos Thrust
- DoT Potency increased to 40

Enhanced Blood for Blood (Trait)
- C/D also reduced to 60s
- Decreases damage received from 25% to 15%

I'm still on the edge of having Heavy Thrust boosted by a further 5% however. I'd also like Spineshatter Drives stun to change into a debuff. Maybe 10% increased damage for 10s instead? It'll keep the same cooldown and the low-damage to balance it out.