Follow proof:
https://gyazo.com/59132f7f8bc2dffc02b4f974316bb9d0
https://gyazo.com/895780e877fc12d93fc9bc98b170736d
https://gyazo.com/c64fd2bcc5a3f40909388dbb670d400d
NPC name: Seastone
Place: Amity Square
Together with pokemon: Wigglytuff
Dialogue: Have you ever been to Treasure Town? (Explorer of time/darkness/sky reference)
Wigglytuff dialogue: YOOM-TAH!
Outfit (if possible): https://gyazo.com/29bf6a84517f6e75667e06231d2f8afc
Pretty random npc, but would be cool! :D
btw, Can't wait for Sinnoh to come, I'm so hyped!! :O :D