Group size estimator
How many trainers do I need to invite?
Invite 5 to be safe — 4 if everyone is prepared
- Boss CP
- 48,798
- 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 | 5(4.51) | 6(5.45) | 7(6.26) | 25:05 | 6.0 |
| Level 25 | 4(3.54) | 5(4.34) | 6(5.05) | 19:58 | 6.0 |
| Level 30 | 4(3.19) | 4(3.76) | 5(4.42) | 17:17 | 6.0 |
| Level 35 | 4(3.11) | 4(3.52) | 5(4.21) | 16:11 | 6.0 |
| Level 40 | 3(2.89) | 4(3.30) | 5(4.01) | 15:10 | 6.0 |
| Level 45 | 3(2.83) | 4(3.19) | 4(3.86) | 14:39 | 6.0 |
| Level 50 | 3(2.66) | 4(3.04) | 4(3.71) | 13:59 | 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
- Keldeo2.89
A prepared party
Each trainer brings the boss's top six counters, powered up and correctly TM'd.
4 trainers at level 40
- Keldeo2.89
- Blacephalon3.27
- Reshiram3.30
- Lucario3.39
- Terrakion3.37
- Landorus (Therian)3.55
A mixed local group
Ranks 13-24: reasonable but unoptimised parties, which is what a public lobby usually is.
5 trainers at level 40
- Heatran3.89
- Conkeldurr3.93
- Urshifu (Single Strike)3.97
- Garchomp3.95
- Gallade3.99
- Volcarona3.98
The party these numbers assume
See the full ranked counter list for Melmetal · 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.