Group size estimator
How many trainers do I need to invite?
Invite 4 to be safe — 3 if everyone is prepared
- Boss CP
- 41,029
- Boss HP
- 15,000
- 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(2.68) | 4(3.50) | 5(4.39) | 16:07 | 6.0 |
| Level 25 | 3(2.36) | 4(3.01) | 4(3.81) | 13:50 | 6.0 |
| Level 30 | 3(2.11) | 3(2.67) | 4(3.37) | 12:17 | 6.0 |
| Level 35 | 3(2.02) | 3(2.55) | 4(3.17) | 11:43 | 5.9 |
| Level 40 | 2(1.93) | 3(2.41) | 4(3.05) | 11:05 | 5.9 |
| Level 45 | 2(1.87) | 3(2.29) | 3(2.92) | 10:34 | 5.9 |
| Level 50 | 2(1.79) | 3(2.23) | 3(2.82) | 10:15 | 5.8 |
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
- Kyurem (White)1.93
A prepared party
Each trainer brings the boss's top six counters, powered up and correctly TM'd.
3 trainers at level 40
- Kyurem (White)1.93
- Kyurem (Black)2.14
- Eternatus2.55
- Rampardos2.58
- Gigalith2.61
- Glimmora2.64
A mixed local group
Ranks 13-24: reasonable but unoptimised parties, which is what a public lobby usually is.
4 trainers at level 40
- Terrakion2.83
- Necrozma (Dawn Wings)2.91
- Regigigas2.94
- Tyranitar2.95
- Weavile2.97
- Glaceon3.02
The party these numbers assume
See the full ranked counter list for Rotom (Fan) · 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.