Shaman/Skyseer Looking for a way to fit in ONE POINT OF DEFENCE??

So my current build is as follows
Helmet - Aries
Chestplate - Andesite Aegis
Leggings - Vaward
Boots - Capricorn
Ring 1 - Prism
Ring 2 - Summa
Bracelet - Succession
Necklace - >:(
My issue is that I'm trying to use Stellar as my necklace, but I'm short by ONE POINT of defence, so if you have any suggestions on how to shuffle things around to achieve this I would be ever so grateful!
I'm running a spell centered build so anything that doesn't directly harm that should be fine!

 

you can get some extra skillpoints from tomes

also, i dont think this build is that great to begin with...

 

any suggestions on how to tweak it? I kinda just went onto wynnbuilder and put whatever sounded cool on it, so I'm not really married to any particular piece.
My one real necessity is just high spell damage 'cause I like nuking an area with aura.
Any advice is appreciated, thank you!

 

Didn't even mention a weapon, archetype, budget, nothing...

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