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A Striking Shadow is the Special Research to catch Marshadow, a Mythical Pokémon from the Alola region. It was made available since April 3rd, 2025. Trainers who obtained one of the Pokémon GO Fest 2024 Special Researches will instead earn Marshadow Candies.[1]

Task sets[]

TodayView Icon Research A Striking Shadow
1st Part
Spin 50 PokéStops or Gyms
Explore 10 km
Rewards for whole set
2nd Part
Hatch 10 Eggs
Earn 3 Candies walking with your buddy
Send 10 Gifts to friends
Rewards for whole set
3rd Part
Evolve 5 Pokémon
Complete 20 Field Research tasks
Rewards for whole set
4th Part
Defeat 10 Team GO Rocket members
Use 15 supereffective Charged Attacks
Rewards for whole set
5th Part
Earn 25,000 XP
Earn 25,000 Stardust
Make 5 Excellent Throws
Rewards for whole set
Trainers who obtained one of the Pokémon GO Fest 2024 Special Researches will receive instead of another Marshadow encounter.
6th Part
Explore 10 km
Power up Ghost-type Pokémon 10 times
Power up Fighting-type Pokémon 10 times
Rewards for whole set

Professor Willow and Team Leaders dialogue[]

1st Part
Professor Willow icon
  • Aha, TRAINER! Your timing couldn’t be better! Tell me—have you noticed anything unusual about your shadow lately?
  • Several Trainers across the region claim to have seen something strange going on with their shadows.
  • I’m pretty sure the reports align with something I put down in my older research, but I have to find my notes before I can confirm my theory.
  • If you’re up for it, let’s go with a tried-and-true play: I’ll search my archives, and you can go out and investigate. Your field observations could prove invaluable!
2nd Part
Spark icon
  • Yo, TRAINER! You looking for the prof? He just bolted by a second ago. He had a big old notebook with him!
  • The vibes around here have been mega off lately, what with all the weird shadows creeping people out! I mean, not that I’m scared or anything. I’m cool like a cucumber, you know?
  • But hey, if you wanted to take a break from shadow-hunting, we could hang a bit, trade some battle strats, maybe grab a quick snack?
  • No? Yeah, I guess you’re right, finding Professor Willow is probably the priority!
3rd Part
Blanche icon
  • Greetings, TRAINER. I see my appearance has caught you off guard. Rest assured, you did not startle me.
  • You’re looking for Professor Willow, correct? I saw him moments ago, though his behavior was somewhat...unusual. It looked as though he was tracking something through the shadows, off in that direction.
  • These shadowy anomalies you’ve likely heard about—I’ve been studying them myself, though my observations have yet to yield definitive conclusions.
  • Perhaps your own investigation will prove more fruitful. But be cautious, TRAINER.
4th Part
Candela icon
  • Oh, TRAINER! You after Professor Willow, too?
  • You know all these weird shadows? They’re no random occurrence. There’s something moving through them. Something interesting.
  • While Blanche is doing the analyzing thing and Spark is jumping at every shadow, I say you and me tackle this thing head-on!
  • Just remember, keep that fighting spirit burning, TRAINER! Whatever’s out there is testing us!
5th Part
Professor Willow icon
  • Found you at last, TRAINER! We must’ve been walking right past each other in all these shadows.
  • I’ve cross-referenced our recent field data against my old notes, and I managed to identify the source of these mysterious occurrences!
  • A powerful presence is out there, observing Trainers and their Pokémon. Based on the data, it should be nearby, too.
  • We’re looking at a massive research opportunity here—and you’re the perfect Trainer for the occasion!
  • Get out there and investigate the thing that’s causing all these odd shadows—but remember to be careful. We don’t know for sure what lies in the darkness!
6th Part
Professor Willow icon
  • Exceptional work, TRAINER!
  • The strange shadows were actually the Mythical Pokémon Marshadow, hiding in plain sight! Well, plain-ish.
  • Following its trail through the darkness got us closer than we realized, but it took someone with your special connection to Pokémon to finally draw it into the light.
  • This is a significant moment! You’ve not only solved the mystery of the shadows—you’ve also gained a powerful new friend in Marshadow!

References[]