[MCH] DPS in bismark ex

[Shneibel]

you can have gb on till the first back break after that and you have 3 seconds left on your dot you have room to reattach it for a burst every time the back is open to attack.
the worms is probably the harder part as you need sustain dmg. it is ok to use your cds for the glow wurms. other then that the gb should be off the rest of the fight outside waiting for your dots(the ones you get from standing on bismarck) to go off right before getting on the back so you can use ricochet and gauss round on the back etc.

but ya if your fc can't help you get a clear, you probably still won't be able to get a clear with a pug.

I've clear both ex bismarck and ravana ex the same day

so you mean equip GB, apply dots, burn the CD of GB and unequipped, and repeat ?