I have been playing in the new battleground & I have been able to defeat all levels up to 55 with my Skyger lvl 15 except for lvls 1, 4, 9, 10, 13, 14, 18, 19, 23, 27, 29, 31 & 53. Levels 1 & 13, I used Ancient Sloth 10; Levels 4, 29 & 53, I used Pyro Pony 15; Levels 14, 18, 19, 23, 27, I used Rock Rhino 15; Level 9 I used Frostfang 15; Level 10 I used Ancient Sloth 10; Level 21 I used Lightning 15.