spell boost perk. on which items?

I see the wiki has info about all the general perks bit which items can you have spell boosts on?

So far I only had it on head and belt where else can I get it?

I have a spell boost on my belt and torso. Swordrain and Bladestorm

Oh thanks I always just got hp on my armors

I have hero health on 2 items and it is bloody rubbish!! Annoyed me that much that I actually wasted gems to get rid of it!