I feel like we could have Dragon Trainer and Dragon Master skins.
Dragon Trainers are the kinda good guys, the Hiccup of the Dragons. So far we have Dragon Trainer Lulu and Tristana, but it could expand to Corki, Gnar, Heimer, or Rumble.
Dragon Masters would be the ethically questionable part of skin concepts, using them more as weapons. This idea could expand to, of course, Swain, Syndra, Zyra and Kindred.
And then we got them Jerks, the Dragon Slayer skin line.
Just food for thought.
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dragon turrets ftw!