Group size estimator
How many trainers do I need to invite?
Invite 3 to be safe — 2 if everyone is prepared
- Boss CP
- 22,463
- 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(2.28) | 3(2.71) | 4(3.39) | 12:28 | 6.0 |
| Level 25 | 2(1.97) | 3(2.36) | 3(2.91) | 10:52 | 6.0 |
| Level 30 | 2(1.77) | 3(2.12) | 3(2.61) | 9:46 | 5.7 |
| Level 35 | 2(1.72) | 3(2.02) | 3(2.48) | 9:18 | 5.6 |
| Level 40 | 2(1.68) | 2(1.95) | 3(2.36) | 8:57 | 5.4 |
| Level 45 | 2(1.57) | 2(1.86) | 3(2.28) | 8:34 | 5.4 |
| Level 50 | 2(1.53) | 2(1.80) | 3(2.19) | 8:18 | 5.3 |
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
- Keldeo1.68
A prepared party
Each trainer brings the boss's top six counters, powered up and correctly TM'd.
2 trainers at level 40
- Keldeo1.68
- Lucario1.86
- Terrakion1.90
- Blaziken1.95
- Kartana2.15
- Urshifu (Rapid Strike)2.15
A mixed local group
Ranks 13-24: reasonable but unoptimised parties, which is what a public lobby usually is.
3 trainers at level 40
- Marshadow2.28
- Pheromosa2.29
- Zamazenta (Crowned Shield)2.31
- Hisuian Decidueye2.32
- Raikou2.35
- Kyurem (Black)2.34
The party these numbers assume
See the full ranked counter list for Buneary · 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.