What adds to "Resistance" ??

[Istar]

Our Barbarian has a rage that gives resist 5 all.
Also my Warden has forms at resist 3 right now.
We are Goliath twins so also have the racial power.

Is their a feat or power or something that can add to resistance.
The barbarian reckons he might have seem something but cant remember where.

We know their is a feat that adds to your Regeneration, so thought maybe there is something that bumps up resistance also.

 

[Ryujin]

Akanul background from Forgotten Realms adds 2 to resist cold, fire, and thunder.

 

[fba827]

resistance is very powerful (much more so than regeneration), so I don't think you'll have much luck finding things that increase it.

 

[On Puget Sound]

It usually does not stack; if you have the same type of resistance from several sources, you use only the best one. The akanul background is an exception noted in its text.

Resist All also does not stack with any specific resistances. If you have resist 3 all and resist 5 fire, you subtract 5 from a fire attack, not 8. If you have, instead, resist 5 all and resist 3 fire, the fire resistance adds nothing; you subtract 5 from fire and non-fire damage alike.