I was wondering if any of you could explain to me a problem that appeared while I was fighting a Sand Drake with a friend.
Friend is a Warrior/Elementalist:
Knight's Helm
Platemail Cuirass
Platemail Leggings
Knight's Gauntlets
Knight's Boots
16 Armor Shield of the Wing (No Dmg absorption on Shield)
I'm a Warrior/Elementalist:
Platemail Helm
Platemail Cuirass (Rune of Major Absorption)
Platemail Leggings
Platemail Gauntlets
Platemail Boots
16 Eternal Shield (No Dmg absorption on Shield)
---
Sand Drake uses Aftershock:
My friend takes 50 dmg.
I take 54 dmg.
(52 with a pair of Knight's Gauntlets).
Sand Drake uses Aftershock while we use our Healing Signets (-40 Armor):
My friend takes 74 dmg.
I take 104 dmg.
(102 with a pair of Knight's Gauntlets).
---
Ignoring Runes, and the Knight's innate Absorption bonus, the dmg difference
really, really confuses me.

I know that only one piece of Knight's will give an active Absorption bonus, and that they don't stack (aside from Absorption Runes), and even if they did, double dmg while using Signet of Healing (-40 armor) is too much, isn't it?
No other spells were used other than Signet of Healing, and our weapons
don't have Damage reduction or the like.
Could someone explain this to me..?
Thank you.
