Theme ???

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Across
  1. 5. Fairy/fighting type, only knight bug evolution
  2. 9. Fire type, final fox evolution
  3. 10. Psychic/steel type, final lion evolution
  4. 11. Psychic type, pink cat evolution
  5. 15. Fire type, only proud dog evolution
  6. 16. Fire type, final tiger evolution
  7. 17. Bug/steel type, middle red evolution
  8. 19. Water/steel type, final penguin evolution
  9. 20. Poison/fighting type, only bara dog evolution
  10. 21. Ground/rock type, middle rhino evolution
  11. 22. Dark/grass type, only bat evolution
Down
  1. 1. Fire/dark type, final bara tiger evolution
  2. 2. Grass/fighting type, only bug cat evolution
  3. 3. Poison/fighting type, final frog evolution
  4. 4. Water type, final cunty lizard evolution
  5. 6. Fighting type, only red martial artist evolution
  6. 7. Bug/steel type, final knight bug evolution
  7. 8. Normal/grass type, final deer evolution
  8. 12. Electric type, final yeti evolution
  9. 13. Bug/fighting type, only fancy bug evolution
  10. 14. Grass type, final bara ape evolution
  11. 18. Grass/ghost type, final owl evolution