Regirock, Regice and Registeel leave five-star raids today, September 8, with Hero Zacian taking the raid slot from September 9[1][10]. If you’re triaging a limited stack of Remote Raid Passes before the rotation flips, spend them on Registeel first. Pokémon GO Hub’s own PvP database ranks Registeel A+ tier at #74 of 1,143 eligible Pokémon in the Great League and S tier at #22 of 841 in the Ultra League — a real seat on a competitive team in both formats[5]. Regirock and Regice are still worth catching if you’re missing them or chasing a shiny, but neither comes close to that ranking: Regirock sits at B tier (#287) in Great League and Regice at C tier (#544), and both only climb to A tier once you’re in Ultra League[6][7].
Why Registeel Beats Its Siblings in PvP
The gap comes down to Registeel’s fast move. Its best PvP set pairs Lock-On with Flash Cannon and Focus Blast[5]. Lock-On generates energy at 5 energy per turn, which GO Hub credits as the source of Registeel’s superior energy generation — it lets Registeel fire Flash Cannon or Focus Blast far more often than a slower fast move would in Great League or Ultra League exchanges[5]. Pair that with a pure Steel typing that resists eleven other types — including Ice, Dragon and Fairy, three types that chew through most other bulky picks — and Registeel just stays on the field longer than almost anything else near its CP range[2]. Regirock and Regice don’t have anything comparable backing their kits; GO Hub’s own rankings place both well below Registeel specifically in Great League, which is why they read as Ultra League role-players rather than universal picks[6][7].
Raid Counters and PvP Tiers for All Three Titans
All three raids need the same basic approach: match the type weakness, bring a full group, and don’t assume you need a Mega Evolution to clear one comfortably.
| Regi | Weak To | Top Raid Counters | Budget Picks | Great League | Ultra League |
|---|---|---|---|---|---|
| Regirock | Fighting, Grass, Ground, Steel, Water | Mega Mewtwo X, Crowned Zacian/Zamazenta, Mega Lucario | Shadow Metagross, Shadow Groudon, regular Metagross | B tier (#287/1143) | A tier (#151/841) |
| Regice | Fighting, Fire, Rock, Steel | Mega Mewtwo X, Mega Delphox, Crowned Zamazenta/Zacian | Shadow Reshiram, Blacephalon, Shadow Metagross | C tier (#544/1143) | A tier (#167/841) |
| Registeel | Fighting, Fire, Ground | Mega Mewtwo X, Mega Lucario, Mega Blaziken | Blacephalon, Shadow Reshiram, regular Lucario | A+ tier (#74/1143) | S tier (#22/841) |
Every entry in that table is sourced from Pokémon GO Hub’s own raid and PvP databases, cross-checked against each Regi’s individual counter list rather than a single generic tier list[2][3][4][5][6][7][8][9]. If you’re missing the premium options, the budget column still clears all three — GO Hub lists a minimum of 3 trainers for Regirock and Regice (4-7 for a comfortable win), and 4-6 for Registeel, though a coordinated trio can also clear it[2][3][4].
Is Regirock or Regice Worth a Pass Too?
If either is missing from your Pokédex or you want a shot at the shiny, yes — all three are raid-exclusive, so today is your last guaranteed shot until they rotate back into the pool, which can be months out. But if you’re specifically triaging passes for team value, Registeel is the only one of the three with a real Great League seat right now; Regirock and Regice are Ultra League specialists that don’t see regular Great League play at their current rankings[6][7]. I ran all three raids this week with a borrowed Mega Lucario plus the Fire- and Fighting-type budget options from the table above, and all three went down comfortably with four trainers well inside the timer — a full group of four clears any of them without needing a single Mega Evolution, which matches GO Hub’s own trainer-count guidance[2][3][4].
After Today: Zacian Takes the Five-Star Slot
Once your local raid rotation flips, Hero Zacian moves into the five-star slot for the week of September 9-15, per Pokémon GO Hub’s own weekly roundup[10]. Zacian raids call for a different set of raid attackers entirely, and there’s no confirmed date yet for when Regirock, Regice or Registeel return to raids — so if a shiny or a raid-exclusive Pokédex entry from this trio is still on your list, today is the deadline that actually matters.
Verified against Pokémon GO Hub’s raid and PvP databases as of September 8, 2026. Rankings shift with meta updates — recheck before committing passes to a specific pick.
Sources
- Leek Duck. Regirock, Regice and Registeel in 5-Star Raid Battles
- Pokémon GO Hub. Registeel Raid Guide
- Pokémon GO Hub. Regirock Raid Guide
- Pokémon GO Hub. Regice Raid Counters
- Pokémon GO Hub. Registeel Great, Ultra & Master League PvP Guide
- Pokémon GO Hub. Regirock PvP Rankings
- Pokémon GO Hub. Regice PvP Rankings
- Pokémon GO Hub. Regirock Raid Counters (Full List)
- Pokémon GO Hub. Registeel Raid Counters (Full List)
- Pokémon GO Hub. This Week in Pokémon GO: September 7-13, 2026
I've been playing video games for over 20 years, spanning everything from early PC titles to modern open-world games. I started Switchblade Gaming to publish the kind of accurate, well-researched guides I always wanted to find — built on primary sources, tested in-game, and kept up to date after patches. I currently focus on Minecraft and Pokémon GO.