By shadow cloning Helga, Joseph can easily kill mobs. ★6 Yuri+14 (Kill 6, 10, 2, 4) ★6 Joseph+9 (Kill 1, 5, 8, 9, 7) ★6 Jin+10 (Kill 3 by counter) ★6 Helga+15 ★6 Helga+15
Rage
★6 Yuri+13 (Kill 6, 10, 2, 4) ★6 Ebony+15 ★6 Joseph+10 (Kill 1, 5, 8, 9, 7) ★6 Jin+10 (Kill 3 by counter) ★6 Helga+12
Make sure Helga won't kill 2. ★6 Viola+10 (Kill 10, 9) ★6 Joseph+10 (Kill 2, 4, 5, 6, 7, 8) ★6 Jin+10 (Kill 3 by counter) ★6 Helga+12
★6 Mary+10 ★6 Michaela+15 ★6 Asmode+0 (Kill 10) ★6 Corette+10 (Kill 3, 2, 4, 5, 8) ★6 Dalvi+15 (Kill 1, 9, 7) ★6 Jin+10 (Kill 6 by counter)
Origninally from YouTube, ちゃんねるふる's video. With proper runes, 6 turns is possible. I used Zakan just in case Jin's counter was non-critical. ★6 Ceres+10 ★6 Alche+10 (Kill 3, 4, 5) ★6 Lian+9 (Kill 1, 6, 8, 9, 10) ★6 Jin+10 (Kill 2, 7 by counter) ★6 Zakan+10 (Kill 2 by counter)
★6 Mary+10 ★6 Veronia+10 ★6 Corette+9 (Kill 2, 3, 4, 5, 8) ★6 Deka+9 (Kill 1, 7, 9) ★6 Angelica+6 (Kill 10) ★6 Foxy+10 (Kill 6 by counter) ★6 Chalkle+9 (Counter) ★6 Zakan+9 (Counter)
★6 Arines+9 ★6 Ceres+10 ★6 Veronia+9 ★6 Corette+2 (Kill 2, 3, 4, 5, 8) ★6 Deka+9 (Kill 1, 7, 9) ★6 Angelica+6 (Kill 10) ★6 Foxy+4 (Kill 6 by counter) ★6 Chalkle+9 (Counter) ★6 Zakan+9 (Counter)
Using 10 mercs. Borrow a merc from your friend. ★6 Arines+9 ★6 Ebony+9 ★6 Alche+9 (Kill 2, 4, 6) ★6 Veronia+9 ★5 Octavia+4 (Kill 3, 5, 8) ★6 Rafina+9 (Kill 1, 7, 9) ★6 Angelica+3 (Kill 10) ★6 Zakan+9 (Dmage 10 by counter) ★6 Gloria+2 ★6 Chalkle+9 (Dmage 10 by counter)...
★6 Serendia+9 ★6 Alche+9 (Kill 3, 4, 5) ★5 Jin+1 (Kill 7) ★5 Octavia+9 (Kill 1, 6, 7, 8, 10) ★6 Chalkle+9 (Kill 2 by counter) ★6 Zakan+9 (Kill 2 by counter)
★6 Arines+9 ★6 Serendia+9 ★6 Alche+9 (Kill 2, 4, 6) ★6 Niya+9 (Kill 3, and attack boss) ★6 Eunrang+9 (Kill 5, 9, 10) ★6 Granhildr+3 ★6 Mora+8 (Kill 8, 7) ★6 Ventana+6 (Attack boss) ★6 Gloria+1