Should You Choose Spark or Sierra in the Pokemon GO Holiday Part 1 Research?
In Pokemon GO's Holiday Part 1 branching research, trainers face a crucial decision: assist Spark or Sierra. While Niantic's official announcement omits this free research, it runs from December 17th to December 22nd, 9:59 AM local time. This three-part research culminates in a choice between these two paths.
Choosing Spark or Sierra: A Comparison
The core difference lies in the Pokemon type focus and reward encounter. The choice isn't drastically impactful, but it influences your catching strategy and desired reward.
Spark's Research: An Ice-Type Focus

Spark's path emphasizes Ice-type Pokemon. Completing Part 2 rewards an Alolan Vulpix encounter.
Part 2 Tasks & Rewards:
| Research Task | Reward |
|---|---|
| Catch 10 Ice-Type Pokemon | 10 Pinap Berries |
| Take 5 snapshots of wild Pokemon | 20 Poke 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 Pokemon | 10 Ultra Balls |
| Power Up Ice-Type Pokemon 10 Times | 1 Golden Razz Berry |
| Collect MP from 3 Power Spots | 100 Max Particles |
| Complete All Three Tasks | Sandygast, 3000 XP, 2000 Stardust |
Note: Part 3 rewards (including the Sandygast encounter) are identical regardless of the chosen path.
Sierra's Research: A Fire-Type Focus

Sierra's path centers around Fire-type Pokemon, culminating in a Shadow Vulpix encounter in Part 2.
Part 2 Tasks & Rewards:
| Research Task | Reward |
|---|---|
| Catch 10 Fire-Type Pokemon | 10 Pinap Berries |
| Take 5 snapshots of wild Pokemon | 20 Poke 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 Pokemon | 10 Ultra Balls |
| Power Up Fire-Type Pokemon 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 ultimate decision hinges on your preferred Vulpix variant and the Pokemon type you wish to prioritize during the Holiday Part 1 event.
Pokemon GO is currently available.
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