There's two of them?! (Alphabetical besides answers with numbers)

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Across
  1. 2. The only two rivals who stole a Pokemon
  2. 4. This is what Machoke, Spinarak, Beautifly, Huntail, Magmortar, Litleo, Wimpod, Runerigus, and Cyclizar all have in common.
  3. 6. Amongst all the Pokémon generations that use Bicycles, these two are the only ones that have "gimmick bikes."
  4. 7. Despite being in a trio, these two same-generation Pokemon are not listed with them side-to-side in the Pokedex.
  5. 9. This winged variant of a cartoon character and this flesh-ified robotic monk from a Blizzard game have appeared on our attendance slideshow for most of the semester.
  6. 10. These are the only two regions to have unique music for their gates
  7. 12. These two franchises (besides Pokémon) were referenced in Elias' art exchange masterpiece.
  8. 13. This trainer class is a combined pairing of a bald guy and a motorcycle lover.
  9. 16. These two Battle Facility trainers share the same class despite being from two different generations
  10. 17. These are the only two Pokemon professors you can fight.
  11. 18. Three of the Five Admirals of One Piece have been referenced in each semester's roster of our Anchor Arms Tournament. These are the only two who've yet to be referenced.
  12. 19. The Ernie and Bert of Pokemon
  13. 20. The Pokémon in our Anchor Arms Tournament that forced the room's music to change, and his newly-evolved and recurring All-Star partner.
Down
  1. 1. These two Pokemon were given as a award for making an "edible" Pokemon dish.
  2. 3. Outside of Iris and Wallace, these two former gym leaders became champion.
  3. 5. The two 30HP Pokémon cards that prevent the opponent from using Item cards. (HINT: One in physical, the other in Pocket.)
  4. 8. Asexual Officers
  5. 11. The "Fortnite" duo depicted kissing in a GIF we use to prompt people in our Discord server to play Gartic Phone.
  6. 14. When changing from their base form, these two Electric-type Pokemon gain a unique move from their other forms.
  7. 15. Including alternate forms, this type combination appears 10 times in a row back-to-back in the Pokedex.