Group size estimator
How many trainers do I need to invite?
Invite 3 to be safe — 3 if everyone is prepared
- Boss CP
- 43,290
- 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(3.85) | 5(4.07) | 5(4.35) | 18:45 | 6.0 |
| Level 25 | 4(3.27) | 4(3.39) | 4(3.68) | 15:37 | 6.0 |
| Level 30 | 3(2.61) | 3(2.80) | 4(3.15) | 12:54 | 6.0 |
| Level 35 | 3(2.40) | 3(2.62) | 3(2.99) | 12:02 | 6.0 |
| Level 40 | 3(2.34) | 3(2.48) | 3(2.85) | 11:24 | 6.0 |
| Level 45 | 3(2.24) | 3(2.37) | 3(2.74) | 10:54 | 6.0 |
| Level 50 | 3(2.18) | 3(2.31) | 3(2.64) | 10:37 | 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.
3 trainers at level 40
- Kyurem (White)2.34
A prepared party
Each trainer brings the boss's top six counters, powered up and correctly TM'd.
3 trainers at level 40
- Kyurem (White)2.34
- Mewtwo2.38
- Rayquaza2.36
- Enamorus (Incarnate)2.56
- Kyurem (Black)2.62
- Thundurus (Therian)2.62
A mixed local group
Ranks 13-24: reasonable but unoptimised parties, which is what a public lobby usually is.
3 trainers at level 40
- Zacian (Crowned Sword)2.74
- Enamorus (Therian)2.79
- Moltres2.80
- Necrozma (Dawn Wings)2.82
- Zekrom2.84
- Tapu Koko2.83
The party these numbers assume
See the full ranked counter list for Flamigo · 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.