Board Thread:General Chit-Chat/@comment-28681966-20160607165818/@comment-28225366-20160608014744

Silas gives 300% boost to BB Atk but Haile might overlap with her 200% instead. Sakura Miku and Silas overlap in Critical Damage - Silas has 50% Crit Rate but 60% Crit Damage as opposed to Miku's 100% boost to Crit Damage with a Crit Rate in her ES of 60% also. If you have Haile first, Silas go second, followed by Miku in attack order then it should work out well if that's what you decide on.

The only other thing I can see is a lack of mitigator but you have a lot of probability of Atk reduction so it may work out but I wouldn't count on it 100% of the time.

Oh and goes without saying I'm assuming on a perfect scenario that you have all of the spheres and extra skills taken care of.