Dragon Age: Origins - Best Blood Mage/Arcane Warrior Ring Combo?

As anyone who has seen some of my recent questions may know, I've been exploring the best gear combinations for my character, and I've come to a point where I have almost everything planned out. However, there are three specific rings that I like, and I can't figure out which one to use.



Blood Ring:

25% lower health cost to activate spells for a blood mage.



Lifegiver:

+10 Constitution, +3/+6 health regeneration in combat

+10 health regeneration while exploring

+3 armor

(Not counting the healing effects received bonus, as I hear tell that that's glitched.)



Key to the City:

+2 to all attributes

+4% spell resistance

(Also not counting the healing effects bonus)



Obviously this creates a bit of a dilemma, as I can only wear two rings and I can't figure out which combination would be most beneficial. Any suggestions?Dragon Age: Origins - Best Blood Mage/Arcane Warrior Ring Combo?
I guess it kind of depends on how you play. Personally when I play my blood mage I don't have blood mage active all the time I activate it at the beginning of a battle use the two good spells and then deactivate it and then take a health polstice so if you play like that then the blood ring isn't all that helpful but if you play with blood magic active most of the time then that ring might be a good choice. As for me though I go with lifegiver and key to the city since as a mage you need more constitution whether you're a blood mage or not and especially as an arcane warrior since I assume you're more in the middle of things and need to be able to take more damage and key to the city is just good for anyone..

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