You can find here the available levels and required points for them:

Level 0 (Ghost) 0-4 Points

Level 1 (Snotter) 5-14 Points

Level 2 (Ebula) 15-29 Points

Level 3 (Antling) 30-49 Points

Level 4 (Wolf) 50-74 Points

Level 5 (Werebeast Enchanter) 75-99 Points

Level 6 (Screach) 100-149 Points

Level 7 (Goatar) 150-199 Points

Level 8 (Sporespitter) 200-349 Points

Level 9 (Vagabond) 350-499 Points

Level 10 (Ice Ogre) 500-749 Points

Level 11 (Antlore Healer) 750-999 Points

Level 12 (Wolf Commander) 1000-1299 Points

Level 13 (Wild Hunter) 1300-1599 Points

Level 14 (Catman Soldier) 1600-1999 Points

Level 15 (Skeleton King) 2000-2499 Points

Level 16 (Vulture Lord) 2500-2999 Points

Level 17 (Minotaur) 3000-3749 Points

Level 18 (Vagabond Leader) 3750-4499 Points

Level 19 (Catman Champion) 4500-5499 Points

Level 20 (Predasaur) 5500-6999 Points

Level 21 (Predasaur Crusher) 7000-8999 Points

Level 22 (Dragon Master) 9000-11999 Points

Level 23 (Zorgath) 12000-14999 Points

Level 24 (Kongor) 15000-19999 Points

Level 25 (TRIVIAGOD) 20000+ Points