Group size estimator
How many trainers do I need to invite?
Invite 4 to be safe — 4 if everyone is prepared
- Boss CP
- 43,962
- 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(4.41) | 5(4.81) | 6(5.76) | 22:09 | 6.0 |
| Level 25 | 4(3.81) | 5(4.15) | 5(4.85) | 19:05 | 6.0 |
| Level 30 | 4(3.23) | 4(3.65) | 5(4.30) | 16:49 | 6.0 |
| Level 35 | 4(3.08) | 4(3.46) | 5(4.12) | 15:55 | 5.9 |
| Level 40 | 3(2.91) | 4(3.33) | 4(3.91) | 15:18 | 5.9 |
| Level 45 | 3(2.80) | 4(3.18) | 4(3.78) | 14:39 | 5.8 |
| Level 50 | 3(2.71) | 4(3.07) | 4(3.66) | 14:07 | 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.
3 trainers at level 40
- Blacephalon2.91
A prepared party
Each trainer brings the boss's top six counters, powered up and correctly TM'd.
4 trainers at level 40
- Blacephalon2.91
- Rayquaza3.14
- Salamence3.40
- Reshiram3.39
- Moltres3.50
- Enamorus (Incarnate)3.62
A mixed local group
Ranks 13-24: reasonable but unoptimised parties, which is what a public lobby usually is.
4 trainers at level 40
- Cinderace3.83
- Eternatus3.83
- Zacian (Crowned Sword)3.83
- Volcarona3.85
- Darmanitan (Standard)3.87
- Staraptor3.87
The party these numbers assume
See the full ranked counter list for Silvally (Bug) · 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.