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 — 2 if everyone is prepared

At level 40, a party of Mienfoo's top six counters needs 1.74 trainers (round up: 2), and a mixed lobby of ranks 13-24 needs 2.05 (round up: 3). The raid timer is 300 seconds and one prepared trainer alone would take 8:00. No level in this range makes it soloable with a prepared party. A duo works from level 30.

Mienfoo · Elite

fighting

Weak to

flyingpsychicfairy

Boss CP: 26,308
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 Mienfoo 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(2.26)	3(2.47)	3(2.91)	11:23	5.9
Level 25	3(2.00)	3(2.11)	3(2.52)	9:44	5.6
Level 30	2(1.76)	2(1.90)	3(2.24)	8:45	5.3
Level 35	2(1.68)	2(1.82)	3(2.15)	8:23	5.1
Level 40	2(1.62)	2(1.74)	3(2.05)	8:00	4.9
Level 45	2(1.57)	2(1.69)	2(1.98)	7:45	4.8
Level 50	2(1.51)	2(1.63)	2(1.91)	7:30	4.6

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

Rayquaza1.62

A prepared party

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

2 trainers at level 40

Rayquaza1.62
Mewtwo1.67
Enamorus (Incarnate)1.69
Hoopa (Unbound)1.79
Tapu Lele1.83
Galarian Articuno1.84

A mixed local group

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

3 trainers at level 40

Hoopa1.99
Necrozma (Dusk Mane)2.00
Lunala2.02
Salamence2.02
Lugia2.02
Eternatus2.05

The party these numbers assume

1. Rayquaza

Air Slash + Dragon Ascent

2. Mewtwo

Confusion + Psystrike

3. Enamorus (Incarnate)

Fairy Wind + Fly

4. Hoopa (Unbound)

Confusion + Psychic

5. Tapu Lele

Confusion + Nature's Madness

6. Galarian Articuno

Psycho Cut + Fly

See the full ranked counter list for Mienfoo · 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.