Group size estimator
How many trainers do I need to invite?
Invite 2 to be safe — 1 if everyone is prepared
- Boss CP
- 37,583
- Boss HP
- 9,000
- 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 | 2(1.10) | 2(1.25) | 2(1.61) | 5:47 | 6.0 |
| Level 25 | 1(0.96) | 2(1.06) | 2(1.33) | 4:56 | 6.0 |
| Level 30 | 1(0.79) | 1(0.92) | 2(1.17) | 4:15 | 6.0 |
| Level 35 | 1(0.76) | 1(0.86) | 2(1.11) | 4:01 | 5.9 |
| Level 40 | 1(0.71) | 1(0.83) | 2(1.05) | 3:50 | 5.9 |
| Level 45 | 1(0.70) | 1(0.80) | 2(1.01) | 3:43 | 5.9 |
| Level 50 | 1(0.66) | 1(0.77) | 1(0.98) | 3:35 | 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.
1 trainer at level 40
- Keldeo0.71
A prepared party
Each trainer brings the boss's top six counters, powered up and correctly TM'd.
1 trainer at level 40
- Keldeo0.71
- Lucario0.81
- Terrakion0.83
- Kartana0.84
- Blaziken0.87
- Zacian (Crowned Sword)0.89
A mixed local group
Ranks 13-24: reasonable but unoptimised parties, which is what a public lobby usually is.
2 trainers at level 40
- Pheromosa1.01
- Gallade1.02
- Machamp1.05
- Tapu Bulu1.05
- Hisuian Decidueye1.05
- Marshadow1.06
The party these numbers assume
See the full ranked counter list for Mega Absol · 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.