Group size estimator
How many trainers do I need to invite?
Invite 4 to be safe — 4 if everyone is prepared
- Boss CP
- 43,023
- 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(4.12) | 5(4.71) | 6(5.76) | 21:41 | 6.0 |
| Level 25 | 4(3.54) | 4(3.99) | 5(4.78) | 18:20 | 6.0 |
| Level 30 | 4(3.18) | 4(3.53) | 5(4.17) | 16:13 | 6.0 |
| Level 35 | 3(2.98) | 4(3.27) | 4(3.93) | 15:02 | 6.0 |
| Level 40 | 3(2.87) | 4(3.09) | 4(3.71) | 14:13 | 6.0 |
| Level 45 | 3(2.73) | 3(2.95) | 4(3.61) | 13:34 | 6.0 |
| Level 50 | 3(2.65) | 3(2.82) | 4(3.47) | 12:59 | 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
- Kyurem (White)2.87
A prepared party
Each trainer brings the boss's top six counters, powered up and correctly TM'd.
4 trainers at level 40
- Kyurem (White)2.87
- Rayquaza2.96
- Blacephalon3.11
- Mewtwo3.18
- Kyurem (Black)3.21
- Reshiram3.22
A mixed local group
Ranks 13-24: reasonable but unoptimised parties, which is what a public lobby usually is.
4 trainers at level 40
- Heatran3.56
- Necrozma (Dawn Wings)3.61
- Enamorus (Incarnate)3.66
- Zamazenta (Crowned Shield)3.66
- Zacian (Crowned Sword)3.74
- Toucannon3.74
The party these numbers assume
See the full ranked counter list for Venusaur · 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.