For the BGB emulator.

Assuming no misses:

Korg: Focus, Summon 1 Brub only

Togoth: Summon 2 Brubs

Ogar: Summon 2 Brubs

Morag: Summon 3 Brubs from the second page (low defensive stats)

First Brub Fights Koil

First Brub Beams Tony, Second Brub Beams Self

First Brub Breams Self, Third Brub Beams Self

Cald ShadowMagi: Summon 2 Brubs

Warrada in the Cald Geyser: Summon 1 Brub

Korremar: Summon Ormagon (Wreck) then 1 Brub

Korg: Summon 2 Brubs. After the first Grax is summoned, Focus once then summon the 3rd Brub

Zet: Summon 4 Brubs

Agram: Summon 4 Brubs. Consider Ormagon if you have multiple Core Hyrens

