The Poke GO Hunter on X: "Timed Investigation: Master Ball #PokemonGO Ⓜ️💜 This while take a while to complete! Also confirmed you can have 2 in your Item Bag in case you
Pokémon Go Timed Investigation Master Ball quest step and rewards | Eurogamer.net
Pokémon Go' Tips: How to Get Great, Ultra & Master Balls
How to get more Master Balls in Pokemon: Let's Go | Shacknews
Did I waste my master ball? I'm glad I caught it but still feel like a sucker : r/pokemongo
5 things Pokemon GO players should keep in mind before using Master Ball