I haven't had a chance to do testing on this personally yet, so I was wondering if maybe one of the other three resto druids with the talent might know.

How does the damage reduction of resilience stack with the damage reduction on natural perfection?

Let's say I got crit by an attack that does 2000 damage before either, I have 3/3 natural perfection for 10% damage reduction on crits against me, and enough resilience to reduce crit damage by 5%.

I assume it works one of two ways:

1) Additively. 10% is added to the 5%, for a total of 15%. The 2000 crit lands for 1700 total.

2) Multiplicatively. Order of natural perfection or resilience shouldn't matter as the end number is the same (correct me if wrong please). The 2000 is reduced by 5% to 1900, and then natural perfection takes off 10%, for an end result of 1710.

Not a huge difference either way but it's certainly more attractive if its the first.

http://www.thottbot.com/?e=Apply%20A...lee%20by%20%25

Spell Effect: Apply Aura: Reduces Attacker Critical Hit Damage with Melee by %

Since it is its own aura, and only works on melee and ranged, I would be shocked if it was anything but multiplicative. From a coding standpoint it would be a nightmare to merge it with resilience into an additive value, with pretty much zero benefit to game mechanics.

Either way, it's still one of those "must have" talents for large-scale arena.

Are their other auras that stack multiplicatively instead of additively?
You used to have LotP + Elemental Sharpening stones.

Regardless, you can't make any assumptions on the ease or difficulty of coding.
Furthermore, I feel it's counter intuitive to invest in a talent that reduces the effectiveness of some beneficial stat.

I haven't really thought of this. But how do I know if a rogue would crit me for 2000? does it say in the combal log: x dmg reduced due to resilience/ NP? Honest question.

Find a hunter to test with and have them use steady shot/arcane shot. Or a warrior with bloodthirst.