Group size estimator
How many trainers do I need to invite?
Invite 5 to be safe — 4 if everyone is prepared
- Boss CP
- 38,605
- 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(3.81) | 5(4.98) | 7(6.36) | 22:54 | 6.0 |
| Level 25 | 4(3.27) | 5(4.22) | 6(5.25) | 19:24 | 6.0 |
| Level 30 | 4(3.02) | 4(3.74) | 5(4.63) | 17:12 | 6.0 |
| Level 35 | 3(2.75) | 4(3.57) | 5(4.42) | 16:25 | 5.9 |
| Level 40 | 3(2.69) | 4(3.39) | 5(4.24) | 15:36 | 5.9 |
| Level 45 | 3(2.57) | 4(3.32) | 5(4.04) | 15:16 | 5.8 |
| Level 50 | 3(2.52) | 4(3.20) | 4(3.91) | 14:43 | 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
- Eternatus2.69
A prepared party
Each trainer brings the boss's top six counters, powered up and correctly TM'd.
4 trainers at level 40
- Eternatus2.69
- Palkia (Origin)3.39
- Rayquaza3.52
- Baxcalibur3.55
- Haxorus3.58
- Kyurem (Black)3.60
A mixed local group
Ranks 13-24: reasonable but unoptimised parties, which is what a public lobby usually is.
5 trainers at level 40
- Salamence4.00
- Kyurem (White)4.09
- Dragonite4.11
- Groudon4.20
- Reshiram4.17
- Rampardos4.22
The party these numbers assume
See the full ranked counter list for Turtonator · 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.