Group size estimator

How many trainers do I need to invite?

The Estimator is already "trainers of this attacker needed to finish inside the timer", so this page does not invent a number: it reads it off the boss's own ranked counter list for three realistic parties and re-simulates each of them at every level from 20 to 50.

Raid bossTierIVsWeatherFriendshipDodgingShadow attackersMega attackersLegendary attackers

Invite 3 to be safe — 3 if everyone is prepared

At level 40, a party of Camerupt's top six counters needs 2.03 trainers (round up: 3), and a mixed lobby of ranks 13-24 needs 2.52 (round up: 3). The raid timer is 300 seconds and one prepared trainer alone would take 9:37. No level in this range makes it soloable with a prepared party. A duo works from level 45.

Camerupt · Shadow Tier 5

fireground

Weak to

waterground

Boss CP: 31,454
Boss HP: 15,000
Raid timer: 300s
Party used: 6

Trainers needed, by attacker level

Scroll sideways for the mixed-lobby column.

Trainers needed to beat Camerupt at each attacker level
Attacker level	Six of the best counter	A prepared party	A mixed local group	Prepared solo time	Faints per timer
Level 20	3(2.79)	4(3.24)	5(4.04)	15:18	6.0
Level 25	3(2.43)	3(2.62)	4(3.31)	12:22	6.0
Level 30	3(2.12)	3(2.27)	3(2.85)	10:43	6.0
Level 35	2(1.92)	3(2.14)	3(2.66)	10:07	6.0
Level 40	2(1.88)	3(2.03)	3(2.52)	9:37	6.0
Level 45	2(1.81)	2(1.94)	3(2.45)	9:10	6.0
Level 50	2(1.71)	2(1.85)	3(2.33)	8:45	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.

2 trainers at level 40

Kyogre1.88

A prepared party

Each trainer brings the boss's top six counters, powered up and correctly TM'd.

3 trainers at level 40

Kyogre1.88
Inteleon2.00
Quaquaval1.99
Primarina2.08
Kingler2.12
Greninja2.13

A mixed local group

Ranks 13-24: reasonable but unoptimised parties, which is what a public lobby usually is.

3 trainers at level 40

Volcanion2.39
Clawitzer2.31
Hisuian Samurott2.37
Crawdaunt2.45
Tatsugiri2.45
Palkia (Origin)2.58

The party these numbers assume

1. Kyogre

Waterfall + Origin Pulse

2. Inteleon

Water Gun + Hydro Cannon

3. Quaquaval

Water Gun + Hydro Cannon

4. Primarina

Waterfall + Hydro Cannon

5. Kingler

Bubble + Crabhammer

6. Greninja

Water Shuriken + Hydro Cannon

See the full ranked counter list for Camerupt · 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.