Group size estimator
How many trainers do I need to invite?
Invite 4 to be safe — 3 if everyone is prepared
- Boss CP
- 29,293
- Boss HP
- 15,000
- 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(3.45) | 4(3.99) | 6(5.11) | 18:50 | 6.0 |
| Level 25 | 3(2.63) | 4(3.37) | 5(4.14) | 15:55 | 6.0 |
| Level 30 | 3(2.41) | 4(3.00) | 4(3.62) | 14:12 | 6.0 |
| Level 35 | 3(2.34) | 3(2.84) | 4(3.46) | 13:24 | 6.0 |
| Level 40 | 3(2.26) | 3(2.70) | 4(3.31) | 12:45 | 5.9 |
| Level 45 | 3(2.19) | 3(2.61) | 4(3.19) | 12:19 | 5.9 |
| Level 50 | 3(2.04) | 3(2.51) | 4(3.10) | 11:51 | 5.8 |
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
- Keldeo2.26
A prepared party
Each trainer brings the boss's top six counters, powered up and correctly TM'd.
3 trainers at level 40
- Keldeo2.26
- Terrakion2.59
- Blaziken2.68
- Lucario2.79
- Urshifu (Rapid Strike)2.90
- Eternatus2.97
A mixed local group
Ranks 13-24: reasonable but unoptimised parties, which is what a public lobby usually is.
4 trainers at level 40
- Necrozma (Dusk Mane)3.16
- Raikou3.17
- Hisuian Decidueye3.23
- Machamp3.25
- Marshadow3.25
- Cobalion3.34
The party these numbers assume
See the full ranked counter list for Exploud · 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.