You adjusted it for your sets and lore of steel and it still looks right in the calc? 

Looking at Demy's masteries, is there any chance you're capping out on buffs with Lasting Gifts? I'd want her in OFF/DEF either way. 

I have Lasting Gifts.  I really think the problem is the "delay" in the AI.  should I set Demytha's initial attack as her A1?  All of her Block Damages seem to be coming in the middle of CB turn