Have you ever found yourself in a situation where someone trades you a level 100 unevolved Shiny Pokemon? Yes, no. Or either way I'm going to prepare you for how to deal with someone who is trying to troll you. When you receive your level 100 unevolved Pokemon, don't try to battle with it to evolve it. Instead, open up your inventory, select Rare Candy, and give it to your Pokemon, and BOOM! Your Pokemon WILL EVOL. This has been around since Pokemon Sword and Shield, so this won't work in any older Pokemon games. And if you use your Rare Candy on that subscribe button, you'll evolve into a subscriber.