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 2 to be safe — 2 if everyone is prepared

At level 40, a party of Bidoof's top six counters needs 1.39 trainers (round up: 2), and a mixed lobby of ranks 13-24 needs 1.71 (round up: 2). The raid timer is 300 seconds and one prepared trainer alone would take 6:22. No level in this range makes it soloable with a prepared party. A duo works from level 20.

Bidoof · Elite

normal

Weak to

fighting

Boss CP: 12,603
Boss HP: 20,000
Raid timer: 300s
Party used: 6

Trainers needed, by attacker level

Scroll sideways for the mixed-lobby column.

Trainers needed to beat Bidoof 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	2(1.64)	2(1.94)	3(2.37)	8:55	5.9
Level 25	2(1.44)	2(1.70)	3(2.07)	7:49	5.6
Level 30	2(1.29)	2(1.52)	2(1.86)	6:59	5.3
Level 35	2(1.27)	2(1.46)	2(1.79)	6:43	5.1
Level 40	2(1.21)	2(1.39)	2(1.71)	6:22	5.0
Level 45	2(1.17)	2(1.35)	2(1.66)	6:13	4.9
Level 50	2(1.15)	2(1.31)	2(1.61)	6:00	4.8

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

Keldeo1.21

A prepared party

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

2 trainers at level 40

Keldeo1.21
Lucario1.32
Terrakion1.37
Blaziken1.42
Kartana1.46
Pheromosa1.53

A mixed local group

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

2 trainers at level 40

Breloom1.63
Gallade1.64
Marshadow1.66
Hisuian Decidueye1.71
Mewtwo1.71
Zamazenta (Crowned Shield)1.72

The party these numbers assume

1. Keldeo

Low Kick + Secret Sword

2. Lucario

Force Palm + Aura Sphere

3. Terrakion

Double Kick + Sacred Sword

4. Blaziken

Counter + Aura Sphere

5. Kartana

Fury Cutter + Sacred Sword

6. Pheromosa

Low Kick + Focus Blast

See the full ranked counter list for Bidoof · 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.