After becoming Champion for the first time, the player gets to receive a Type: Null.
For Pokémon Sun & Moon, the player receives the Type: Null as a gift from Gladion at Aether Paradise.
For Pokémon Ultra Sun & Ultra Moon, Wicke will give the player a Type: Null entrusted to you from Gladion, at the Ancient Poni Path.
This gift has a chance of being shiny. Details below refer specifically to this file.
Format Ver.1.0.7-0, Post Updated Date:20190330_1911
Format Ver.1.0.5-5, Post Updated Date:20171129_1934