Group size estimator
How many trainers do I need to invite?
Invite 4 to be safe — 3 if everyone is prepared
- Boss CP
- 22,299
- 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(3.60) | 4(3.99) | 5(4.68) | 18:22 | 6.0 |
| Level 25 | 4(3.11) | 4(3.42) | 5(4.06) | 15:45 | 5.8 |
| Level 30 | 3(2.71) | 4(3.09) | 4(3.64) | 14:12 | 5.5 |
| Level 35 | 3(2.63) | 3(2.96) | 4(3.46) | 13:36 | 5.4 |
| Level 40 | 3(2.49) | 3(2.81) | 4(3.31) | 12:56 | 5.2 |
| Level 45 | 3(2.38) | 3(2.72) | 4(3.18) | 12:30 | 5.1 |
| Level 50 | 3(2.32) | 3(2.63) | 4(3.09) | 12:06 | 4.9 |
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
- Blacephalon2.49
A prepared party
Each trainer brings the boss's top six counters, powered up and correctly TM'd.
3 trainers at level 40
- Blacephalon2.49
- Rayquaza2.68
- Mewtwo2.73
- Reshiram2.90
- Moltres3.03
- Salamence3.05
A mixed local group
Ranks 13-24: reasonable but unoptimised parties, which is what a public lobby usually is.
4 trainers at level 40
- Chandelure3.23
- Toucannon3.24
- Cinderace3.25
- Heatran3.28
- Zacian (Crowned Sword)3.30
- Lunala3.32
The party these numbers assume
See the full ranked counter list for Whirlipede · 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.