For sake of my sanity, to clarifying are you arguing shaman > cleric? 
I started in trying to justify a sham for the 4th fill.  Not the 3rd let alone as a trio. 
 
Cleric is stronger with two charm classes than slow already.  It’s the benefit they get for otherwise being horribly boring. 
 
If this was two monks, sure, shaman all day long. 
		
		
		
		
		
		
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