Board Thread:Questions and Answers/@comment-25769372-20150725040933/@comment-26814154-20150726000255

WOW you have so many units...

Diana 6* L

Zergel 6* for ATK buff

Kira 6* for Crit buff and ignore def

Kanon 6* NULL and def up

Darvanshell 6* mitigator

Feeva 7*  Friend

or

Griel 7* Friend

all of your units need to have SBB.

i believe it's enough to take a mecha god down. I did it first time  with Feeva Ivris Shera and kira and don't remember the friend i used.