You're wandering through the park, sun’s out, and your phone buzzes. It's a black balloon. You’ve got a Rocket Radar equipped, so you know it’s one of the big bosses. You tap it, hoping for something easy. Nope. It’s Arlo.
Honestly, Leader Arlo June 2025 is proving to be a massive pain for most players. If you haven't faced him yet this month, you’re in for a surprise. His team changed back during the "Crown Clash" event, and while he’s been sitting on this roster for a bit, the June heat makes the grind feel even slower.
He’s tough. Really tough.
The Arlo Lineup: What You’re Actually Facing
Look, the thing about Arlo is that he doesn't play fair. His team is a mix of high-CP shadows that can shred your health bars before you even get a Charged Attack off. In June 2025, he’s leading with Shadow Horsea.
Don't let the cute little seahorse fool you. It’s fast.
Phase 1: The Opener
He always starts with Shadow Horsea. It’s a pure Water-type. This is basically your "setup" phase. You want to use this time to burn his shields and farm some energy.
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Phase 2: The Random Curveball
This is where people usually lose. He’ll send out one of three:
- Shadow Slowbro (Water/Psychic)
- Shadow Crobat (Poison/Flying)
- Shadow Steelix (Steel/Ground)
If you bring a Grass-type to kill Horsea and he swaps into Crobat? You’re dead. Instantly. It’s a hard counter that most people don't prepare for. Steelix is also a tanky nightmare that requires a completely different strategy.
Phase 3: The Heavy Hitters
The final slot is just as unpredictable:
- Shadow Scizor (Bug/Steel)
- Shadow Alolan Muk (Poison/Dark)
- Shadow Alakazam (Psychic)
Scizor only has one weakness: Fire. If you don't have a Fire-type ready, that bug will 1v3 your entire team. I’ve seen it happen. It's not pretty.
How to Actually Beat Him (Without Tossing Your Phone)
You’ve gotta be smart about your team composition. You can’t just throw your highest CP Dragonite at him and hope for the best. Leader Arlo June 2025 requires coverage.
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A lot of experts, including the folks over at Screen Rant and Leek Duck, suggest a very specific "safe" trio. You want an Electric-type, a Fire-type, and a Ground-type.
Therian Thundurus or Zekrom are great leads. They delete Horsea. They also handle Crobat and Slowbro. If Arlo pulls out Steelix, though, you need to swap fast. Groudon (especially with Precipice Blades) is the king here. It handles Steelix and Alolan Muk with ease.
Then there’s Scizor. Ho-Oh or Reshiram are your best bets. Scizor has a double weakness to Fire, so even a moderately powered-up Charizard can do the job if you’re out of Legendaries.
The "I Can't Find Arlo" Problem
I see this on Reddit all the time. Players have their radar on, they’re hunting for the June research, but they keep getting Sierra or Cliff.
It’s just RNG. Pure, annoying luck.
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There is no "secret trick" to make Arlo appear. If you check a PokeStop and it’s Cliff, just walk away. The boss at that stop is locked for the day. Wait for the next balloon (they usually spawn at 12 AM, 6 AM, 12 PM, and 6 PM). If it’s still not Arlo, try again later.
Is the Reward Even Worth It?
After you beat him, you get to catch that Shadow Horsea.
Is it meta-breaking? Not really.
But if you're lucky enough to get a shiny one, it looks incredible. Plus, you need to beat him to get the Super Rocket Radar for Giovanni. This month, Giovanni has Shadow Dialga, which is a genuine beast in the Master League.
You also get the usual loot:
- 1,000 Stardust (Always useful).
- A 12km Red Egg (If you have an open slot).
- Random items like Max Revives or Unova Stones.
Practical Steps for Your Next Battle
Don't go in blind. If you lose the first time, pay attention to his second and third Pokemon. They stay the same for that specific encounter. If he had Steelix and Scizor, adjust your team to include a Ground and Fire type and jump right back in.
- Lead with an Electric-type to pressure Horsea and break shields.
- Keep a Fire-type in the back specifically for Scizor.
- Use the "swap stall" technique. When you swap Pokemon, the AI stops attacking for a couple of seconds. Use those free hits.
Check your inventory for a Rocket Radar and start hunting those balloons. If you see the red hair and the smug attitude, you'll know exactly what to do.