And here normal done with mostly S1 (partly costumed) 4* heroes (only wilbur S2).
But I would say with those heroes, a minion destroyer is definitely needed.
And there are better 4* out there, gulli would have made the whole thing far easier for example but I wanted to make the team as easily accessible as possible.
Battle items used were small and medium mana potion and small and medium health potion.