Group size estimator
How many trainers do I need to invite?
Invite 4 to be safe — 3 if everyone is prepared
- Boss CP
- 42,582
- 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(2.83) | 4(3.26) | 5(4.46) | 15:00 | 6.0 |
| Level 25 | 3(2.45) | 3(2.82) | 4(3.85) | 12:59 | 6.0 |
| Level 30 | 3(2.23) | 3(2.53) | 4(3.41) | 11:38 | 5.8 |
| Level 35 | 3(2.08) | 3(2.36) | 4(3.23) | 10:52 | 5.8 |
| Level 40 | 2(1.99) | 3(2.27) | 4(3.04) | 10:26 | 5.7 |
| Level 45 | 2(1.96) | 3(2.20) | 3(2.95) | 10:07 | 5.7 |
| Level 50 | 2(1.83) | 3(2.12) | 3(2.84) | 9:46 | 5.6 |
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)1.99
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)1.99
- Zamazenta (Crowned Shield)2.00
- Necrozma (Dusk Mane)2.05
- Keldeo2.28
- Lucario2.61
- Terrakion2.66
A mixed local group
Ranks 13-24: reasonable but unoptimised parties, which is what a public lobby usually is.
4 trainers at level 40
- Zarude2.96
- Shaymin (Sky)2.98
- Urshifu (Single Strike)3.00
- Kyogre3.00
- Hisuian Decidueye3.01
- Urshifu (Rapid Strike)3.04
The party these numbers assume
See the full ranked counter list for Lycanroc (Midnight) · 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.