This is for advanced players, but with this formation, I was able to go through campaign 20 to 30's boss stages. ★6 Hell+9 ★6 Ceres+10 ★6 John+10 ★6 Jin+1 ★6 Seir+10 ★6 Foxy+10 ★6 Siegmund+10 ★6 Chalkle+10 ★6 Zakan+9
Campaign S1
46 47 48 49 50 ☆☆☆ Campaign 46-1 (Very Hard) ☆☆☆ ☆☆☆ Campaign 46-2 (Very Hard) ☆☆☆ ☆☆☆ Campaign 46-3 (Very Hard) ☆☆☆ ☆☆☆ Campaign 46-4 (Very Hard) ☆☆☆ ☆☆☆ Campaign 46-5 (Very Hard) ☆☆☆ ☆☆☆ Campaign 46-6 (Very Hard) ☆☆☆ ☆☆☆ Campaign 46-7 (Very Hard) ☆☆☆ ☆☆☆ C...
41 42 43 44 45 ☆☆☆ Campaign 41-1 (Very Hard) ☆☆☆ ☆☆☆ Campaign 41-2 (Very Hard) ☆☆☆ ☆☆☆ Campaign 41-3 (Very Hard) ☆☆☆ ☆☆☆ Campaign 41-4 (Very Hard) ☆☆☆ ☆☆☆ Campaign 41-5 (Very Hard) ☆☆☆ ☆☆☆ Campaign 41-6 (Very Hard) ☆☆☆ ☆☆☆ Campaign 41-7 (Very Hard) ☆☆☆ ☆☆☆ ...
Requires 10 horseshoes, and you can fill remaining 7 spots for ★1 mercs. With exp booster you can max level ★1 mercs. Info from GuitarRock FWT's YouTube video. ★6 John+10 ★5 Naius+6
☆☆☆ Campaign 36-5 ☆☆☆ ★6 Seir+10 ★6 Arines+9 ★6 Ebony+9 ★6 Niya+9 ★6 Zakan+9 ★6 Veronia+9 ★6 Octavia+5 ★6 Angelica+4 ☆☆☆ Campaign 36-10 ☆☆☆ ★6 Seir+10 ★6 Arines+9 ★6 Ebony+9 ★6 Viola+10 ★6 Chalkle+10 ★6 Veronia+6 ★6 Angelica+4 ★6 Zakan+9 ...
☆☆☆ Campaign 31-5 ☆☆☆ ★6 Arines+9 ★6 Ebony+9 ★6 Viola+10 ★6 Rafina+9 ★6 Niya+9 ★6 Denarisa+9 ★6 Seir+10 ☆☆☆ Campaign 31-10 ☆☆☆ ★6 Arines+9 ★6 Ebony+9 ★5 Garinoth+1 ★6 Niya+9 ★6 Viola+10 ★6 Angelica+4 ★6 Denarisa+9 ★6 Seir+10 ☆☆☆ Campaign...
40-10 is mainly for leveling up 1 merc, the last 9th spot. However you can still get normal scrolls, and good amount of golds. Need 8 horseshoes for hard mode. When other 8 mercs are max level, 9th merc will get 6245 exp (781 exp / horseshoe) which is better than 45-10. ★6 Arines+9 ★6 Ebo...
25-10 is a good place to get normal scrolls, and leveling up for several mercs. Need 6 horseshoes for hard mode. Sometimes Angelica fails to land critical, and won't be able to one-shot the boss. This formation is tuned for clearing as fast as possible, but you can replace Zakan, Chalkle, and Eun...
2, 3, 5, 7, 9 can be switched to other mercs, so you can include couple of mercs for leveling pretty easy here. ★6 Leto+9 (Important! Stun the boss all the time) ★6 Granhildr+3 (Any merc with Bebuff Immunity to block Concentrated Fire, but not necessary) ★6 Arines+9 ★5 Esther+9 (Kill d...