Need help making my Giants B10 team full auto

Essentially what the Title says. I recently fused Veromos and have been grinding Giants B10 for a while, steadily upgrading my runes and trying desperately to achieve full auto. I can full auto maybe half of the times that I try and was wondering what I could do to help achieve that 100% success rate.

[Here](http://imgur.com/a/51wvY) is the team that I'm currently using and their stats. Majority of the runes are 5* with only a select few being maxed out, and most others being +12

Veromos - Swift Energy, Spd/Hp/Hp

Bernard - Swift Focus, Spd/Hp/Accuracy

Shannon - Despair Energy, Hp/Hp/Acc

Ahman - Energy +Broken set (Need 1 more Violent rune), Hp/CR/HP

Bella - Violent Focus, Spd/Hp/Hp

I intend to 6* both my Bernard and my Shannon but the issue isn't either of them dying within the runs, but after watching the runs that I fail auto-ing it appears to be simply that either my Bernard doesnt land or simply doesnt use bodyslam to get that that attack debuff on the boss, or my Shannon doesnt have pep-talk up in the first few turns before the 1st Giant Counterattack and one unlucky person gets wiped from def break + attk buff on giant.

Among the other similar posts I've seen about Giants B10, they all say to 6* Bernard and Shannon. Although I think that that would certainly increase the rate of success, I still think I would be unlucky and still maybe be only to win 3/5 times.

Alternatively I also have a Sigmarus I could use as a leader to replace Ahman/Bella to have a faster clear rate and also have a higher chance to Attk Debuff the boss. I could start working on my Michelle to replace Ahman with just for the revive and buff elongation, or I could switch up my Hwa runes to make her much much more tanky so that she doesnt get 1 shot by the counterattack.

I see a lot of people running this team on this subreddit so how do you guys cope with Bernard not using Body Slam or is there any way to be "less unlucky" with these runs? Let me know your input and thanks in advance!