Applin was a Pokemon that made its debut in Pokemon Sword/Shield. It's a Dragon/Grass-type Pokemon, but what made Applin special was its ability to evolve into two different Pokemon depending on the item its trainers gave it. In Pokemon Scarlet & Violet, Applin received a third evolution: Dipplin. Prior to the release of Scarlet/Violet's Indigo Disk DLC, some players noticed that Dipplin could "use" the Eviolite item, hinting that it could potentially evolve once more.
Pokemon Scarlet & Violet: How to Evolve Dipplin into Hydrapple (How to Get TM226 Dragon Cheer)
Dipplin's method of evolving into Hydrapple differs from the rest of the Applin-line, so if you want to evolve it, you'll need the help of TM 226.
