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 Kangaskhan's top six counters needs 1.77 trainers (round up: 2), and a mixed lobby of ranks 13-24 needs 2.14 (round up: 3). The raid timer is 300 seconds and one prepared trainer alone would take 8:10. No level in this range makes it soloable with a prepared party. A duo works from level 30.

Kangaskhan · Tier 5

normal

Weak to

fighting

Boss CP: 32,206
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 Kangaskhan 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(2.08)	3(2.74)	4(3.09)	12:35	6.0
Level 25	2(1.78)	3(2.29)	3(2.65)	10:33	6.0
Level 30	2(1.63)	2(1.99)	3(2.35)	9:10	6.0
Level 35	2(1.52)	2(1.86)	3(2.24)	8:33	6.0
Level 40	2(1.47)	2(1.77)	3(2.14)	8:10	5.9
Level 45	2(1.43)	2(1.70)	3(2.06)	7:50	5.9
Level 50	2(1.40)	2(1.64)	2(1.99)	7:34	5.9

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

Keldeo1.47

A prepared party

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

2 trainers at level 40

Keldeo1.47
Terrakion1.74
Lucario1.78
Blaziken1.81
Kartana1.89
Pheromosa1.95

A mixed local group

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

3 trainers at level 40

Breloom2.08
Marshadow2.09
Mewtwo2.11
Hisuian Decidueye2.13
Zacian (Crowned Sword)2.13
Kyurem (Black)2.14

The party these numbers assume

1. Keldeo

Low Kick + Secret Sword

2. Terrakion

Double Kick + Sacred Sword

3. Lucario

Force Palm + Aura Sphere

4. Blaziken

Counter + Aura Sphere

5. Kartana

Fury Cutter + Sacred Sword

6. Pheromosa

Low Kick + Focus Blast

See the full ranked counter list for Kangaskhan · 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.