Queston about Heals & Shields
Does 

stack 'Heals and Shields' like 

stacks 'Leathality'?
Would like to know
Does 

stack 'Heals and Shields' like 

stacks 'Leathality'?
Would like to know
Yes
For sure, shields and healing abilities will stack with multiple items as long as the stat doesn't have the words "Unique" next to it.
Forbidden idol is too strong right now imo
Unique passives stack as long as you don't have the same item multiple times.