Group size estimator
How many trainers do I need to invite?
Invite 5 to be safe — 5 if everyone is prepared
- Boss CP
- 56,910
- Boss HP
- 20,000
- Raid timer
- 300s
- Party used
- 6
Trainers needed, by attacker level
Scroll sideways for the mixed-lobby column.
| Attacker level | Six of the best counter | A prepared party | A mixed local group | Prepared solo time | Faints per timer |
|---|---|---|---|---|---|
| Level 20 | 9(8.37) | 8(7.99) | 9(8.52) | 36:47 | 6.0 |
| Level 25 | 7(6.75) | 7(6.05) | 7(6.81) | 27:50 | 6.0 |
| Level 30 | 5(4.85) | 5(4.91) | 6(5.54) | 22:35 | 6.0 |
| Level 35 | 5(4.16) | 5(4.52) | 6(5.21) | 20:48 | 6.0 |
| Level 40 | 4(3.92) | 5(4.31) | 5(4.91) | 19:49 | 6.0 |
| Level 45 | 4(3.75) | 5(4.18) | 5(4.78) | 19:15 | 6.0 |
| Level 50 | 4(3.65) | 4(4.00) | 5(4.58) | 18:24 | 6.0 |
Whole trainers in bold, the raw estimator in brackets — 2.04 means two trainers is right on the line and three is comfortable.
Six of the best counter
Every trainer brings six copies of the single best counter — the theoretical floor.
4 trainers at level 40
- Rayquaza3.92
A prepared party
Each trainer brings the boss's top six counters, powered up and correctly TM'd.
5 trainers at level 40
- Rayquaza3.92
- Salamence4.22
- Reshiram4.38
- Yveltal4.42
- Moltres4.43
- Galarian Articuno4.47
A mixed local group
Ranks 13-24: reasonable but unoptimised parties, which is what a public lobby usually is.
5 trainers at level 40
- Cinderace4.72
- Zacian (Crowned Sword)4.78
- Rampardos4.79
- Necrozma (Dawn Wings)4.82
- Braviary4.83
- Rhyperior4.87
The party these numbers assume
See the full ranked counter list for Arceus (Bug) · check a real lobby (win chance, who brings what) · make a share card of the top six
How this is worked out
The boss is ranked once at level 40 with rankCached (the same memoised call /raids makes), then the three bands — rank 1, ranks 1-6, ranks 13-24 — are re-simulated at each attacker level with an 8-run Monte Carlo each. Holding the party fixed and moving only its level is deliberate: it answers "what if my party were level 20" rather than "what would a level-20 player's completely different party be", and it is about ten times cheaper than re-ranking every attacker seven times. The Estimator itself is Pokebattler's definition, time to win including rejoin time divided by the raid timer.