Premier Ball

Let's say you beat a Team Rocket Recruit, or a raid. This is the most important time: the time for capture!

This will give you a chance to capture a Pokémon with a very different ball that can only be used in raid or Team Rocket: the Premier Ball!

She is totally white.

You will have Premier Balls accumulated according to your match performance. If its Premier Ball runs out, the Pokémon runs away, but it cannot escape before that.