Selecting a team that has type advantages is key to victory over Team GO Rocket Leader Sierra in in January 2024. While Sierra's team remains the same as it did at the end of 2024, it is arguably the most balanced of all three Leaders this month.
You will need to beat Sierra, along with Cliff and Arlo to be able to challenge Team GO Boss Giovanni this January. Sierra's team has changed in recent months, but she will pick from the same seven Pokémon that she had to choose from in December 2023.
This month Sierra will once again start with the tricky Dark- and Ghost-type Sableye in. There are three very varied options that Sierra can pick from to use second; Psychic- and Fairy-type Gardevoir, Steel- and Flying-type Skarmory, or Generation 1 Poison-type Muk.
Once you have passed Sierra's first two Pokémon she will again pick from three more for her final choice, all of which are tough to take down. This will be either Dark- and Fire-type Houndoom, Water- and Flying-typeGyarados, or the most recent addition to her squad, Grass- and Poison-type Victreebel.
Wave
Sierra's Pokémon and Type
Weaknesses
Best Pokémon Counters
1
Sableye Dark & Ghost
Fairy
2
Skarmory Steel & Flying
Electric and Fire
Gardevoir Psychic & Fairy
Ghost, Poison, and Steel
Muk Poison
Ground and Psychic
3
Houndoom Dark & Fire
Fighting, Ground, Rock, and Water
Gyarados Water & Flying
Electric and Rock
Victreebel Grass & Poison
Flying, Fire, Psychic and Ice
Sierra's line-up in this January can be tough for Trainers to take down, and due to the variety in her line-up, it is impossible to be super-effective against all her options.
Regardless of who Sierra chooses second and third, she will always start with Sableye. Only Fairy-types are strong against it, so
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