Epic Only Tournament for Dragon! | Raid: Shadow Legends 

Venomage solo stage 20 looks like the best option yet

Mycelium priest Orn or Venomage can do solo. But of course with lesser gear then just add in some other champ for support

Im doing mine with Seer, Nia, Urogrim, Deacon and Dark Kael on Hard Stage 6. Approximately 1:20-1:30 run without fail. Gear could and should be much better, but then I'd do stage 9 or 10... Im still ok with my team