Sierra (GO)

Sierra シエラ Sierra
"The Lone Lioness"
Art from Pokémon GO
Age	Unknown
Gender	Female
Eye color	Gray
Hair color	Brown
Hometown	Unknown
Region	Unknown
Trainer class	Team GO Rocket Leader
Generation	VII, VIII, IX
Games	Pokémon GO
Member of	Team GO Rocket
Rank	Leader
Specializes in	Dark types

Sierra (Japanese: シエラ Sierra) is one of the Leaders of Team GO Rocket in Pokémon GO.

A street-smart loner, she has grown up under difficult circumstances, allowing her to learn martial arts. As she rose within the ranks of Team GO Rocket, she became Giovanni's most trusted confidant.^[1]

History

Sierra was the second Team GO Rocket Leader encountered by one of Professor Willow's assistants, following Cliff. Spark, while rescuing Eggs from potential PokéStop invasions, ran into Sierra during his mission. Sierra mocked Spark's efforts in rescuing the Eggs, which prompted him to challenge her to battle. However, Sierra noticed that an unprepared Spark had not brought any Poké Balls, and dismissed his challenge as she walked away.^[2]

On November 5, 2019^[3], Sierra sent the following message to Spark:

"Spark. Your naïve positivity is laughable and will be your undoing.

The world is so very cruel.

I’ll make sure to remind you soon."

On November 12, 2019, Sierra was tracked down by Spark using the Rocket Radar and was challenged to battle. The battle resulted in a close loss for Sierra as Spark ended up with only one Pokémon remaining.^[4]

On July 26, 2020, during Pokémon GO Fest 2020, Sierra battled Spark. Spark initiated the battle by sending out an Elekid, while Sierra sent a Shadow Houndoom.^[5] Houndoom started the fight by using Bite but Elekid knocked it with a destabilizing Thunder Punch.^[6] In the end, Spark won the battle when Giovanni recalled Sierra to him along with the other Team GO Rocket Leaders.^[7]

Pokémon

Trainer Battles

Sierra uses a team of three Shadow Pokémon in a Trainer Battle, each independently and randomly selected from separate pools. During battle, Sierra will always use a Protect Shield whenever possible. Upon being defeated, Sierra will abandon one of the Shadow Pokémon used in battle.

The following lists the possible Pokémon used by Sierra since January 27, 2024. Green-colored cells denote the Pokémon that will be encountered during the bonus challenge. These Shadow Pokémon have a chance of becoming Shiny, as denoted by the icon.

For a historic list of Sierra's past Pokémon teams, see Team GO Rocket Leader (Trainer class)/Pokémon change history.

Leader Sierra
Team GO Rocket Leader

#1

#2

#3

Shadow Raids

Sierra may control Gyms in five-star Shadow Raids, using the following Pokémon during specific times.


Pokémon	Boss CP	Catch CP	Availability
Zapdos	46418	1864 - 2015 2330 - 2519	Saturday and Sunday, September 2 - October 1, 2023 Friday, October 6, 2023 (makeup event)^[8]
Moltres	45609	1830 - 1980 2288 - 2475	Saturday and Sunday, October 1 - 22, 2023
Articuno	40165	1604 - 1743 2005 - 2179	Saturday and Sunday, November 4 - 24, 2023
Zapdos	46418	1864 - 2015 2330 - 2519	Saturday and Sunday, December 2 - 31, 2023
Raikou	45435	1823 - 1972 2280 - 2466	Saturday and Sunday, March 2 - 24, 2023

Gallery

Models

Model from
Pokémon GO

Icons

Icon from
Pokémon GO

Quotes

Main article: Sierra (GO)/Quotes

Trivia

Houndoom has always been one of Sierra's usable Pokémon.
- On October 26, 2023, Kingdra replaced Houndoom in Sierra's lineup. However, this was a possible error, as Houndoom was added back in unannounced on November 14, 2023.

Names

Language	Name	Origin
Japanese	シエラ Sierra	From sierra (Spanish for mountain range)
English, German, Spanish, French, Italian, Brazilian Portuguese, Turkish	Sierra	Same as her Japanese name
Korean	시에라 Sierra	Transcription of her Japanese name
Chinese (Mandarin)	希爾拉 Xī'ěrlā	Transcription of her Japanese name
Chinese (Cantonese)	希爾拉 Hēiyíhlāai	Transcription of her Japanese name
Hindi	सिएरा Sierra	Transcription of her Japanese/English name
Thai	เซียร์รา Sierra	Transcription of her Japanese name

References

Team GO Rocket
Boss:	Giovanni

Leaders:	Cliff • Sierra • Arlo

Lower members:	Team GO Rocket Grunts Jessie • James

Pokémon:	Shadow Pokémon • Shadow Raid

Items:	Mysterious Component Rocket Radar • Super Rocket Radar Shadow Shard • Purified Gem

This game character article is part of Project CharacterDex, a Bulbapedia project that aims to write comprehensive articles on each character found in the Pokémon games.

[1] Pokémon GO Twitter

[2] Willow Report Subject: A shadowy sierra

[3] Pokémon GO Twitter

[4] Team GO Rocket Leaders vs team leaders face-off recap! - Pokémon GO

[5] Twitter announcement

[6] Twitter update

[7] Twitter update

[8] Niantic Support on X: "Trainers, because shiny Shadow Zapdos was not available on Sept. 16, a free Item Bundle containing three Premium Battle Passes is available in the Shop until Sunday, Oct. 8 at 10:00 pm local time for any Trainers who Raided during the affected time. Shadow Zapdos will be…"

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