When people say Limit Break, that means we have to gather 5x units of the exact same, right? i.e. LB-ing Cybella 5* Gunslinger needs another 5x Cybella 5* Gunslinger.4* vincent lancer kratos > Limit Break
4 3* vincent warrior (ares) > Gladiator/Limit Break
3* cybella archer kratos > Grand Ranger/Gunslinger/Limit Break
3* cybella archer athena > Grand Ranger/Gunslinger/Limit Break
3* shizu thief hercules > Magebane/Assassin
3* kai thief zeus > Ninja
4* victoria zealot ares > Blood Knight
3* victoria knight ares > Limit Break
4* luthor priest hercules > Archbishop
3* luthor acolyte ares > Limit Break
2 luthor acolyte 3* > Limit Break (Faiths? No Athena? Keep and build up Athena if you have)
3* keira mage hercules > Elementalist/Mind Warder
3* zedd mage ares > Mind Warder
3* zedd mage zeus > Limit Break
For Cybella it varries, whether you prefer more solid defense with Kratos or more skill damage and skill defense with Athena.
Arena Team
Vincent Ares Berserker / Vincent Kratos Gladiator? (LB the rest) > Gladiator for stun and shield/Warlord for pull
Victoria Ares Blood Knight (LB the other Victoria)
Shizu Hercules Assassin or Magebane? Assassin if you have high CRIT, Magebane if she lives long enough, Ninja Kai can be substitute
Keira Hercules Elementalist
Luthor Hercules Archbishop
Event Team
Vincent Gladiator, Warlord or Lancer? > Gladiator
Kai Ninja
Cybella Grandranger
Zedd Mindwarder > Elementalist Kiera can be substitute
Luthor Archbishop or Inquisitor? Archbishop
You are referring to Halloween event team right? Not gold farming event, because this is a terrible gold farming event team.
Note: Luthor is a poor healer, don't depend on him.
I couldn't imagine how long it would take for me, or if ever at all.