Group size estimator
How many trainers do I need to invite?
Invite 4 to be safe — 4 if everyone is prepared
- Boss CP
- 37,188
- 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(3.44) | 5(4.63) | 6(5.29) | 21:18 | 6.0 |
| Level 25 | 4(3.12) | 5(4.12) | 5(4.54) | 18:58 | 6.0 |
| Level 30 | 3(2.72) | 4(3.49) | 4(3.96) | 16:03 | 6.0 |
| Level 35 | 3(2.61) | 4(3.27) | 4(3.75) | 15:03 | 6.0 |
| Level 40 | 3(2.51) | 4(3.04) | 4(3.60) | 14:01 | 6.0 |
| Level 45 | 3(2.34) | 3(2.91) | 4(3.47) | 13:23 | 6.0 |
| Level 50 | 3(2.26) | 3(2.81) | 4(3.38) | 12:55 | 6.0 |
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
- Keldeo2.51
A prepared party
Each trainer brings the boss's top six counters, powered up and correctly TM'd.
4 trainers at level 40
- Keldeo2.51
- Terrakion2.92
- Kartana3.06
- Lucario3.20
- Pheromosa3.27
- Conkeldurr3.31
A mixed local group
Ranks 13-24: reasonable but unoptimised parties, which is what a public lobby usually is.
4 trainers at level 40
- Zamazenta (Crowned Shield)3.46
- Necrozma (Dusk Mane)3.44
- Zacian (Crowned Sword)3.49
- Marshadow3.56
- Breloom3.59
- Kyurem (Black)3.64
The party these numbers assume
See the full ranked counter list for Kangaskhan · 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.