Group size estimator
How many trainers do I need to invite?
Invite 4 to be safe — 3 if everyone is prepared
- Boss CP
- 22,226
- 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 | 4(3.34) | 4(3.68) | 5(4.25) | 16:55 | 5.8 |
| Level 25 | 3(2.91) | 4(3.22) | 4(3.72) | 14:50 | 5.6 |
| Level 30 | 3(2.61) | 3(2.88) | 4(3.35) | 13:14 | 5.3 |
| Level 35 | 3(2.49) | 3(2.76) | 4(3.17) | 12:41 | 5.1 |
| Level 40 | 3(2.41) | 3(2.66) | 4(3.05) | 12:14 | 4.9 |
| Level 45 | 3(2.33) | 3(2.55) | 3(2.96) | 11:45 | 4.7 |
| Level 50 | 3(2.24) | 3(2.48) | 3(2.87) | 11:26 | 4.6 |
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.
3 trainers at level 40
- Kartana2.41
A prepared party
Each trainer brings the boss's top six counters, powered up and correctly TM'd.
3 trainers at level 40
- Kartana2.41
- Shaymin (Sky)2.64
- Kyogre2.67
- Inteleon2.66
- Zarude2.78
- Quaquaval2.79
A mixed local group
Ranks 13-24: reasonable but unoptimised parties, which is what a public lobby usually is.
4 trainers at level 40
- Roserade2.91
- Necrozma (Dusk Mane)2.97
- Tapu Bulu3.01
- Zamazenta (Crowned Shield)3.02
- Decidueye3.02
- Breloom3.08
The party these numbers assume
See the full ranked counter list for Onix · 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.