Group size estimator
How many trainers do I need to invite?
Invite 5 to be safe — 4 if everyone is prepared
- Boss CP
- 53,123
- 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 | 6(5.01) | 6(5.43) | 7(6.71) | 25:00 | 6.0 |
| Level 25 | 5(4.38) | 5(4.52) | 6(5.59) | 20:49 | 6.0 |
| Level 30 | 4(3.85) | 5(4.15) | 5(4.85) | 19:06 | 6.0 |
| Level 35 | 4(3.56) | 4(3.93) | 5(4.58) | 18:05 | 6.0 |
| Level 40 | 4(3.47) | 4(3.70) | 5(4.27) | 17:02 | 6.0 |
| Level 45 | 4(3.42) | 4(3.58) | 5(4.10) | 16:29 | 5.9 |
| Level 50 | 4(3.24) | 4(3.46) | 4(4.00) | 15:55 | 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.
4 trainers at level 40
- Darkrai3.47
A prepared party
Each trainer brings the boss's top six counters, powered up and correctly TM'd.
4 trainers at level 40
- Darkrai3.47
- Tyranitar3.59
- Hydreigon3.63
- Kyurem (Black)3.72
- Absol3.87
- Eternatus3.94
A mixed local group
Ranks 13-24: reasonable but unoptimised parties, which is what a public lobby usually is.
5 trainers at level 40
- Necrozma (Dusk Mane)4.11
- Zoroark4.09
- Hoopa (Unbound)4.14
- Urshifu (Single Strike)4.12
- Zacian (Crowned Sword)4.20
- Salamence4.19
The party these numbers assume
See the full ranked counter list for Polteageist · 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.