Group size estimator
How many trainers do I need to invite?
Invite 4 to be safe — 3 if everyone is prepared
- Boss CP
- 44,766
- 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(4.55) | 5(4.79) | 6(5.41) | 22:01 | 6.0 |
| Level 25 | 4(3.30) | 4(3.84) | 5(4.63) | 17:41 | 6.0 |
| Level 30 | 3(2.81) | 4(3.30) | 5(4.05) | 15:12 | 6.0 |
| Level 35 | 3(2.75) | 4(3.13) | 4(3.85) | 14:25 | 6.0 |
| Level 40 | 3(2.69) | 3(2.99) | 4(3.68) | 13:47 | 6.0 |
| Level 45 | 3(2.61) | 3(2.87) | 4(3.55) | 13:13 | 6.0 |
| Level 50 | 3(2.39) | 3(2.73) | 4(3.42) | 12:34 | 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
- Keldeo2.69
A prepared party
Each trainer brings the boss's top six counters, powered up and correctly TM'd.
3 trainers at level 40
- Keldeo2.69
- Landorus (Therian)2.90
- Lucario3.00
- Terrakion3.01
- Blaziken3.15
- Kartana3.21
A mixed local group
Ranks 13-24: reasonable but unoptimised parties, which is what a public lobby usually is.
4 trainers at level 40
- Excadrill3.58
- Garchomp3.58
- Breloom3.64
- Marshadow3.66
- Latios3.68
- Hisuian Decidueye3.68
The party these numbers assume
See the full ranked counter list for Heliolisk · 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.