Group size estimator
How many trainers do I need to invite?
Invite 4 to be safe — 4 if everyone is prepared
- Boss CP
- 37,672
- 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 | 4(3.62) | 5(4.60) | 6(5.64) | 21:10 | 6.0 |
| Level 25 | 4(3.06) | 4(3.95) | 5(4.64) | 18:12 | 5.9 |
| Level 30 | 3(2.76) | 4(3.53) | 4(3.96) | 16:16 | 5.7 |
| Level 35 | 3(2.55) | 4(3.31) | 4(3.78) | 15:14 | 5.6 |
| Level 40 | 3(2.48) | 4(3.15) | 4(3.61) | 14:30 | 5.5 |
| Level 45 | 3(2.36) | 3(2.99) | 4(3.50) | 13:45 | 5.4 |
| Level 50 | 3(2.34) | 3(2.93) | 4(3.40) | 13:29 | 5.3 |
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.
3 trainers at level 40
- Necrozma (Dawn Wings)2.48
A prepared party
Each trainer brings the boss's top six counters, powered up and correctly TM'd.
4 trainers at level 40
- Necrozma (Dawn Wings)2.48
- Darkrai3.09
- Necrozma (Dusk Mane)3.31
- Lunala3.31
- Tyranitar3.35
- Hydreigon3.37
A mixed local group
Ranks 13-24: reasonable but unoptimised parties, which is what a public lobby usually is.
4 trainers at level 40
- Chandelure3.44
- Hoopa3.53
- Kingambit3.53
- Hoopa (Unbound)3.56
- Dragapult3.53
- Weavile3.59
The party these numbers assume
See the full ranked counter list for Musharna · 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.