Free (Donation supported) Best for: When the randomizer also randomizes the map or wild encounter levels.
As soon as the game gives you a starter (which is probably a Mewtwo, a Bidoof, or a Dunsparce), immediately open the tracker and fill in "Oak's Lab" -> "Starter: [Pokemon Name]." Note its Nature and Ability if the randomizer altered abilities. pokemon randomizer nuzlocke tracker free