Group size estimator
How many trainers do I need to invite?
Invite 3 to be safe — 3 if everyone is prepared
- Boss CP
- 27,026
- 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 | 3(2.58) | 3(2.88) | 5(4.03) | 13:15 | 6.0 |
| Level 25 | 3(2.31) | 3(2.54) | 4(3.47) | 11:40 | 6.0 |
| Level 30 | 3(2.01) | 3(2.23) | 4(3.09) | 10:17 | 5.8 |
| Level 35 | 2(1.89) | 3(2.13) | 3(2.92) | 9:48 | 5.8 |
| Level 40 | 2(1.83) | 3(2.05) | 3(2.79) | 9:25 | 5.6 |
| Level 45 | 2(1.75) | 2(1.95) | 3(2.71) | 8:58 | 5.5 |
| Level 50 | 2(1.68) | 2(1.88) | 3(2.61) | 8:38 | 5.4 |
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.
2 trainers at level 40
- Zacian (Crowned Sword)1.83
A prepared party
Each trainer brings the boss's top six counters, powered up and correctly TM'd.
3 trainers at level 40
- Zacian (Crowned Sword)1.83
- Necrozma (Dusk Mane)1.90
- Zamazenta (Crowned Shield)1.90
- Keldeo2.12
- Blacephalon2.18
- Lucario2.35
A mixed local group
Ranks 13-24: reasonable but unoptimised parties, which is what a public lobby usually is.
3 trainers at level 40
- Heatran2.72
- Volcarona2.71
- Cinderace2.72
- Necrozma (Dawn Wings)2.74
- Darmanitan (Standard)2.76
- Urshifu (Rapid Strike)2.77
The party these numbers assume
See the full ranked counter list for Castform (Snowy) · 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.