Group size estimator
How many trainers do I need to invite?
Invite 5 to be safe — 4 if everyone is prepared
- Boss CP
- 38,727
- Boss HP
- 22,500
- 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(3.76) | 5(4.60) | 7(6.27) | 21:23 | 5.9 |
| Level 25 | 4(3.22) | 4(3.98) | 6(5.42) | 18:30 | 5.6 |
| Level 30 | 3(2.99) | 4(3.57) | 5(4.95) | 16:35 | 5.2 |
| Level 35 | 3(2.89) | 4(3.46) | 5(4.77) | 16:06 | 5.0 |
| Level 40 | 3(2.67) | 4(3.29) | 5(4.47) | 15:19 | 4.8 |
| Level 45 | 3(2.60) | 4(3.18) | 5(4.31) | 14:47 | 4.6 |
| Level 50 | 3(2.55) | 4(3.08) | 5(4.21) | 14:19 | 4.3 |
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.
3 trainers at level 40
- Zamazenta (Crowned Shield)2.67
A prepared party
Each trainer brings the boss's top six counters, powered up and correctly TM'd.
4 trainers at level 40
- Zamazenta (Crowned Shield)2.67
- Zacian (Crowned Sword)2.69
- Necrozma (Dusk Mane)2.78
- Eternatus3.68
- Metagross3.78
- Tinkaton4.16
A mixed local group
Ranks 13-24: reasonable but unoptimised parties, which is what a public lobby usually is.
5 trainers at level 40
- Genesect4.31
- Genesect (Burn)4.31
- Genesect (Chill)4.31
- Genesect (Douse)4.31
- Genesect (Shock)4.31
- Keldeo4.34
The party these numbers assume
See the full ranked counter list for Mega Audino · 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.