Group size estimator
How many trainers do I need to invite?
Invite 4 to be safe — 3 if everyone is prepared
- Boss CP
- 51,929
- 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(3.64) | 5(4.41) | 6(5.55) | 20:18 | 6.0 |
| Level 25 | 4(3.11) | 4(3.76) | 5(4.52) | 17:19 | 6.0 |
| Level 30 | 3(2.69) | 4(3.30) | 4(3.94) | 15:10 | 6.0 |
| Level 35 | 3(2.41) | 4(3.08) | 4(3.71) | 14:10 | 5.9 |
| Level 40 | 3(2.31) | 3(2.90) | 4(3.49) | 13:20 | 5.9 |
| Level 45 | 3(2.21) | 3(2.83) | 4(3.37) | 13:01 | 5.9 |
| Level 50 | 3(2.16) | 3(2.73) | 4(3.24) | 12:33 | 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
- Necrozma (Dawn Wings)2.31
A prepared party
Each trainer brings the boss's top six counters, powered up and correctly TM'd.
3 trainers at level 40
- Necrozma (Dawn Wings)2.31
- Darkrai2.89
- Tyranitar3.01
- Hydreigon3.04
- Lunala3.02
- Eternatus3.12
A mixed local group
Ranks 13-24: reasonable but unoptimised parties, which is what a public lobby usually is.
4 trainers at level 40
- Incineroar3.35
- Hoopa3.39
- Salamence3.44
- Volcarona3.46
- Guzzlord3.48
- Yveltal3.45
The party these numbers assume
See the full ranked counter list for Azelf · 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.