WTP is up with Heal.

Not afaik.

Code:

Heal Recovery:
Recovery = something * Magic * HealLevel * TargetMultiplier

Heal Target Multiplier: 0.3 + 1/NumTargets (including yourself)
1 - 1.3
2 - 0.8
3 - 0.633
4 - 0.55
5 - 0.5
6 - 0.467

INT used to be where you got most of your magic from, and that's what i meant :/ i should've worded it better.
Anyway, if it's solely based on int now you should be able to heal a lot with potential gear.