I think there should be a “Helper to Hero” mode where you play as Assist Trophies exactly as they are against an army of Miis. The ones who would qualify are:
1. Ghirahim
2. Chef Kawasaki
3. Knuckle Joe
4. Krystal
5. Samurai Goroh
6. Tiki
7. Black Knight
8. Phosphora
9. Gray Fox
10. Knuckles
11. Burrowing Snagret
12. Dr. Wily
13. Zero
14. Guile
15. Rodin
16. Alucard
17. Nikki
18. Arcade Bunny
19. Starman
20. Takamaru
21. Flies & Hand
22. Waluigi
23. Sukapon
24. Spring Man
25. Bomberman
26. Sheriff
27. Isaac
28. Vince
29. Devil
30. Shovel Knight
31. Dillon
32. Yuri
1. Ghirahim
2. Chef Kawasaki
3. Knuckle Joe
4. Krystal
5. Samurai Goroh
6. Tiki
7. Black Knight
8. Phosphora
9. Gray Fox
10. Knuckles
11. Burrowing Snagret
12. Dr. Wily
13. Zero
14. Guile
15. Rodin
16. Alucard
17. Nikki
18. Arcade Bunny
19. Starman
20. Takamaru
21. Flies & Hand
22. Waluigi
23. Sukapon
24. Spring Man
25. Bomberman
26. Sheriff
27. Isaac
28. Vince
29. Devil
30. Shovel Knight
31. Dillon
32. Yuri