Group size estimator
How many trainers do I need to invite?
Invite 4 to be safe — 4 if everyone is prepared
- Boss CP
- 52,713
- 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(4.13) | 5(4.50) | 6(5.02) | 20:42 | 6.0 |
| Level 25 | 4(3.46) | 4(3.79) | 5(4.31) | 17:25 | 6.0 |
| Level 30 | 4(3.14) | 4(3.37) | 4(3.82) | 15:30 | 6.0 |
| Level 35 | 4(3.03) | 4(3.17) | 4(3.57) | 14:35 | 6.0 |
| Level 40 | 3(2.81) | 4(3.02) | 4(3.42) | 13:53 | 6.0 |
| Level 45 | 3(2.72) | 3(2.91) | 4(3.30) | 13:24 | 5.9 |
| Level 50 | 3(2.62) | 3(2.80) | 4(3.18) | 12:54 | 5.9 |
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
- Mewtwo2.81
A prepared party
Each trainer brings the boss's top six counters, powered up and correctly TM'd.
4 trainers at level 40
- Mewtwo2.81
- Rayquaza2.81
- Enamorus (Incarnate)2.97
- Galarian Articuno3.13
- Tapu Lele3.18
- Zeraora3.20
A mixed local group
Ranks 13-24: reasonable but unoptimised parties, which is what a public lobby usually is.
4 trainers at level 40
- Zekrom3.36
- Shaymin (Sky)3.35
- Moltres3.35
- Yveltal3.36
- Salamence3.39
- Lugia3.43
The party these numbers assume
See the full ranked counter list for Urshifu (Rapid Strike) · 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.