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 Meowth's top six counters needs 1.55 trainers (round up: 2), and a mixed lobby of ranks 13-24 needs 1.92 (round up: 2). The raid timer is 300 seconds and one prepared trainer alone would take 7:18. No level in this range makes it soloable with a prepared party. A duo works from level 25.

Meowth · Shadow Tier 5

normal

Weak to

fighting

Boss CP: 12,637
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 Meowth 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(1.85)	3(2.14)	3(2.65)	10:07	5.8
Level 25	2(1.63)	2(1.90)	3(2.31)	8:57	5.5
Level 30	2(1.45)	2(1.69)	3(2.10)	7:59	5.1
Level 35	2(1.40)	2(1.61)	3(2.02)	7:37	4.9
Level 40	2(1.36)	2(1.55)	2(1.92)	7:18	4.8
Level 45	2(1.29)	2(1.50)	2(1.86)	7:04	4.4
Level 50	2(1.25)	2(1.44)	2(1.80)	6:49	4.3

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

Keldeo1.36

A prepared party

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

2 trainers at level 40

Keldeo1.36
Lucario1.45
Terrakion1.55
Blaziken1.61
Kartana1.64
Pheromosa1.66

A mixed local group

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

2 trainers at level 40

Gallade1.83
Necrozma (Dusk Mane)1.85
Marshadow1.88
Machamp1.91
Kyurem (Black)1.90
Zamazenta (Crowned Shield)1.91

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 Meowth · 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.