Group size estimator
How many trainers do I need to invite?
Invite 3 to be safe — 3 if everyone is prepared
- Boss CP
- 26,416
- Boss HP
- 15,000
- 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 | 3(2.68) | 4(3.03) | 4(3.58) | 13:57 | 5.9 |
| Level 25 | 3(2.39) | 3(2.66) | 4(3.15) | 12:15 | 5.8 |
| Level 30 | 3(2.17) | 3(2.35) | 3(2.82) | 10:48 | 5.6 |
| Level 35 | 3(2.06) | 3(2.24) | 3(2.69) | 10:19 | 5.4 |
| Level 40 | 3(2.00) | 3(2.15) | 3(2.58) | 9:52 | 5.3 |
| Level 45 | 2(1.91) | 3(2.08) | 3(2.48) | 9:35 | 5.2 |
| Level 50 | 2(1.86) | 3(2.00) | 3(2.42) | 9:12 | 5.0 |
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
- Rayquaza2.00
A prepared party
Each trainer brings the boss's top six counters, powered up and correctly TM'd.
3 trainers at level 40
- Rayquaza2.00
- Regieleki2.00
- Thundurus (Therian)2.18
- Zeraora2.18
- Xurkitree2.24
- Zekrom2.27
A mixed local group
Ranks 13-24: reasonable but unoptimised parties, which is what a public lobby usually is.
3 trainers at level 40
- Rampardos2.53
- Galarian Articuno2.54
- Eternatus2.55
- Electivire2.55
- Raikou2.57
- Braviary2.59
The party these numbers assume
See the full ranked counter list for Araquanid · 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.