Would this setup work to one-turn Barbatos?

My picture has Waver but that's only a placeholder for Merlin. I'll be rolling for Merlin, and i have all the mats to get him to Lv90 & skills 10/10/10.

Team
Martha Lv80 6/6/6 - MLB OX-Demon King Ce
Cu Alter Max Bond Lv90 10/10/10 NP2 - MLB kscope Ce
Merlin Lv90 10/10/10 - MLB kscope Ce
Nightingale Lv90 10/10/10 - Indefatigable ce
mystic code: combat suit

So my game plan at the start of the battle is to...

1) Use Martha's 2nd and 3rd skill. For the debuff removal and enemy 20% Def down. She'll also have MLB OX-king ce for 15% Buster up.

2) Use combat suit and swap Martha for Nightingale. Activate her 3rd skill for 46% Buster and her bond ce provides 10% Buster as well.

3) Activate Merlin's 1st and 3rd skill for 20% Atk and 50% Buster.

4) Use combat suits to increase Atk 30%

5) Last put Merlins NP before Cu Alter NP which will give Cu Alter Atk 40% @OC200.

Would this be enough?