Home News Pokémon GO Trainers: Spark or Sierra for Holiday Research?

Pokémon GO Trainers: Spark or Sierra for Holiday Research?

Author : Sebastian Jan 26,2025

In Pokémon GO's Holiday Part 1 branching research, trainers face a crucial decision: assist Spark or Sierra. While Niantic's official announcement omits details on this free research, available December 17th-22nd (9:59 AM local time), the choice impacts Pokémon encounters and catching priorities.

Choosing Spark or Sierra: A Comparative Analysis

The core difference lies in the Pokémon types: Ice-type for Spark, Fire-type for Sierra. The final reward (Sandygast) remains consistent, but the path's intermediate rewards differ.

Spark's Research: An Icy Path

Pokémon GO Spark

Image via Niantic

Spark's research tasks revolve around Ice-type Pokémon. Completing Part 2 rewards an Alolan Vulpix encounter.

Part 2 Tasks & Rewards:

Research Task Reward
Catch 10 Ice-Type Pokémon 10 Pinap Berries
Take 5 snapshots of wild Pokémon 20 Poké Balls
Complete 5 Field Research Tasks 500 Stardust
Complete All Three Tasks Alolan Vulpix
2000 XP

Part 3 Tasks & Rewards:

Research Task Reward
Catch 25 Ice-Type Pokémon 10 Ultra Balls
Power Up Ice-Type Pokémon 10 Times 1 Golden Razz Berry
Collect MP from 3 Power Spots 100 Max Particles
Complete All Three Tasks Sandygast
3000 XP
2000 Stardust

Sierra's Research: A Fiery Pursuit

Pokémon GO Rocket Leaders

Image via Niantic

Sierra's research focuses on Fire-type Pokémon, culminating in a Shadow Vulpix encounter in Part 2.

Part 2 Tasks & Rewards:

Research Task Reward
Catch 10 Fire-Type Pokémon 10 Pinap Berries
Take 5 snapshots of wild Pokémon 20 Poké Balls
Complete 5 Field Research Tasks 500 Stardust
Complete All Three Tasks Shadow Vulpix
2000 XP

Part 3 Tasks & Rewards:

Research Task Reward
Catch 25 Fire-Type Pokémon 10 Ultra Balls
Power Up Fire-Type Pokémon 10 Times 1 Golden Razz Berry
Collect MP from 3 Power Spots 100 Max Particles
Complete All Three Tasks Sandygast
3000 XP
2000 Stardust

The Verdict:

The optimal choice hinges on your desired Vulpix variant (Alolan or Shadow) and preferred Pokémon type for catching during the event. Pokémon GO is currently available.