Group size estimator
How many trainers do I need to invite?
Invite 4 to be safe — 3 if everyone is prepared
- Boss CP
- 67,197
- Boss HP
- 22,500
- 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(3.55) | 5(4.59) | 6(5.38) | 21:20 | 6.0 |
| Level 25 | 4(3.01) | 4(3.70) | 5(4.38) | 17:12 | 6.0 |
| Level 30 | 3(2.61) | 4(3.22) | 4(3.79) | 14:58 | 6.0 |
| Level 35 | 3(2.49) | 3(2.93) | 4(3.58) | 13:37 | 6.0 |
| Level 40 | 3(2.40) | 3(2.78) | 4(3.38) | 12:55 | 6.0 |
| Level 45 | 3(2.24) | 3(2.64) | 4(3.23) | 12:17 | 6.0 |
| Level 50 | 3(2.17) | 3(2.54) | 4(3.11) | 11:48 | 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
- Keldeo2.40
A prepared party
Each trainer brings the boss's top six counters, powered up and correctly TM'd.
3 trainers at level 40
- Keldeo2.40
- Blacephalon2.73
- Reshiram2.82
- Landorus (Therian)2.87
- Terrakion2.94
- Blaziken2.92
A mixed local group
Ranks 13-24: reasonable but unoptimised parties, which is what a public lobby usually is.
4 trainers at level 40
- Ho-Oh3.24
- Groudon3.29
- Delphox3.32
- Conkeldurr3.29
- Emboar3.36
- Urshifu (Single Strike)3.47
The party these numbers assume
See the full ranked counter list for Mega Lucario · 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.