Group size estimator
How many trainers do I need to invite?
Invite 5 to be safe — 4 if everyone is prepared
- Boss CP
- 45,927
- 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 | 6(5.93) | 6(5.72) | 7(6.66) | 26:20 | 6.0 |
| Level 25 | 5(4.93) | 5(4.57) | 6(5.39) | 21:00 | 6.0 |
| Level 30 | 5(4.27) | 4(3.96) | 5(4.73) | 18:13 | 6.0 |
| Level 35 | 4(3.78) | 4(3.67) | 5(4.47) | 16:52 | 6.0 |
| Level 40 | 4(3.42) | 4(3.49) | 5(4.25) | 16:03 | 6.0 |
| Level 45 | 4(3.14) | 4(3.32) | 5(4.06) | 15:15 | 6.0 |
| Level 50 | 3(2.99) | 4(3.16) | 4(3.90) | 14:31 | 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.
4 trainers at level 40
- Blacephalon3.42
A prepared party
Each trainer brings the boss's top six counters, powered up and correctly TM'd.
4 trainers at level 40
- Blacephalon3.42
- Thundurus (Therian)3.47
- Regieleki3.44
- Reshiram3.47
- Zeraora3.56
- Xurkitree3.56
A mixed local group
Ranks 13-24: reasonable but unoptimised parties, which is what a public lobby usually is.
5 trainers at level 40
- Darmanitan (Standard)4.13
- Chandelure4.19
- Blaziken4.17
- Volcarona4.19
- Delphox4.23
- Moltres4.25
The party these numbers assume
See the full ranked counter list for Celesteela · 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.