Group size estimator
How many trainers do I need to invite?
Invite 3 to be safe — 3 if everyone is prepared
- Boss CP
- 33,302
- 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 | 4(3.10) | 4(3.13) | 4(3.88) | 14:24 | 6.0 |
| Level 25 | 3(2.73) | 3(2.73) | 4(3.23) | 12:34 | 6.0 |
| Level 30 | 3(2.43) | 3(2.47) | 3(2.86) | 11:23 | 6.0 |
| Level 35 | 3(2.29) | 3(2.32) | 3(2.69) | 10:41 | 5.9 |
| Level 40 | 3(2.20) | 3(2.25) | 3(2.56) | 10:21 | 5.8 |
| Level 45 | 3(2.08) | 3(2.16) | 3(2.46) | 9:58 | 5.8 |
| Level 50 | 3(2.01) | 3(2.11) | 3(2.38) | 9:42 | 5.7 |
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
- Volcarona2.20
A prepared party
Each trainer brings the boss's top six counters, powered up and correctly TM'd.
3 trainers at level 40
- Volcarona2.20
- Kartana2.24
- Genesect2.27
- Genesect (Burn)2.27
- Genesect (Chill)2.27
- Genesect (Douse)2.27
A mixed local group
Ranks 13-24: reasonable but unoptimised parties, which is what a public lobby usually is.
3 trainers at level 40
- Scizor2.46
- Kyurem (White)2.47
- Escavalier2.48
- Yanmega2.49
- Centiskorch2.53
- Rayquaza2.54
The party these numbers assume
See the full ranked counter list for Calyrex · 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.