Group size estimator
How many trainers do I need to invite?
Invite 5 to be safe — 4 if everyone is prepared
- Boss CP
- 55,079
- 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 | 5(4.23) | 6(5.02) | 8(7.11) | 23:05 | 6.0 |
| Level 25 | 4(3.35) | 5(4.16) | 6(5.81) | 19:10 | 6.0 |
| Level 30 | 4(3.10) | 4(3.63) | 5(4.85) | 16:43 | 6.0 |
| Level 35 | 3(2.75) | 4(3.38) | 5(4.61) | 15:34 | 6.0 |
| Level 40 | 3(2.68) | 4(3.18) | 5(4.39) | 14:38 | 6.0 |
| Level 45 | 3(2.61) | 4(3.02) | 5(4.16) | 13:54 | 6.0 |
| Level 50 | 3(2.55) | 3(2.89) | 4(3.95) | 13:17 | 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.
3 trainers at level 40
- Zacian (Crowned Sword)2.68
A prepared party
Each trainer brings the boss's top six counters, powered up and correctly TM'd.
4 trainers at level 40
- Zacian (Crowned Sword)2.68
- Zamazenta (Crowned Shield)2.73
- Necrozma (Dusk Mane)2.72
- Kyurem (White)3.52
- Eternatus3.67
- Thundurus (Therian)3.77
A mixed local group
Ranks 13-24: reasonable but unoptimised parties, which is what a public lobby usually is.
5 trainers at level 40
- Melmetal4.15
- Zekrom4.30
- Raikou4.21
- Kyurem (Black)4.58
- Xurkitree4.19
- Jirachi4.31
The party these numbers assume
See the full ranked counter list for Enamorus (Therian) · 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.