Not Redeemable via Texture Tokens.
Obtain in the Azure Forest quests.
1st Quest Starts at /warp PokemonCenter
Talk to the Little Girl and the Ranger to unlock /warp AzureForest
PLEASE NOTE: Alien Celebi can be obtained at the end by talking to Orchid Celebi. Save Alien Celebi's friend!
Not Redeemable via Texture Tokens
Talk to the NPC at /warp BattleDocks to prove your worth and unlock /warp HallowedValley
To Unlock the Corrupted Quests: Talk to Ranger Lunick in the Top Secret house by the Hallowed Fantasy Jolteon