By Seph: Wildcards are any balanced, preferably wood. I used Duke (894) and ADK (824). F6 = Cu then Fenrir, F7 = other Cu + Zeal. Use Woodsie on either floor. Using him on F6 made a lvl51 Fenrir do 400k to all three knights by himself. F7 took two turns without Woodsie, so HP requirement is to tank one hit.
By ガブリエル: Charge Lucifer and golem skills on floor 1 to 5, use armor break on boss as soon as possible, use all orb change to do as much damage as possible then use lucifers to kill boss in 5 turns
By Dani: Pretty easy and safe build, two gravities for fast boss. Flr 6 grind out one at a time. Flr 7 grav, grav, MS
By bda145: pretty safe build. gravity speeds up final fight. cdk allows the extra damage to break the defense with orb changing. would have a vampire in also for rainbow but dont have atm. can use persphone and vampire allies final fight just takes longer
By Lin失憶: Easy farm build. Rainbow is for HP. Stall on lvl 1-5. Delay on lvl 6. Use siren/valk/shynee and one shot boss.
By Birr1978: Team members should be well leveled (>50). Freyr was max +100. Charge Goemon, Freyr, and Ares prior to entering floor 7 and prep hearts and water orbs. Pop Freyr, Ares, and Echidna. Next turn pop Goemon if not many hearts or water exist, otherwise homura/gigas. 3 turns of ATKs should put it <5% HP. Grind the last DMG out.
By piddlesby: Machine Golem on Fenrir- then odin, pop Siren+CuChu for added damage; Siren+Siegfried for Phoenix Knights; Siren heals at least 1700 and no thinking required.
By kaze@d2jsp: any monster can be high atk & HP dark monster or rainbow keeper, siren for insurance can be replace by high hp dark monster
By jdizZle: Very easy with this build. Hardest part is phoenix knights. Just keep HP full. Use poison on boss. Gravities and armor break not necessary, but shorten the fight dramatically.