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 — 1 if everyone is prepared

At level 40, a party of Frigibax's top six counters needs 0.77 trainers (round up: 1), and a mixed lobby of ranks 13-24 needs 1.02 (round up: 2). The raid timer is 300 seconds and one prepared trainer alone would take 3:31. A prepared solo becomes possible at level 25. A duo works from level 20.

Frigibax · Tier 5

dragonice

Weak to

fightingrocksteeldragonfairy

Boss CP: 18,339
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 Frigibax 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(1.05)	2(1.07)	2(1.44)	4:56	5.5
Level 25	1(0.88)	1(0.93)	2(1.26)	4:16	4.7
Level 30	1(0.78)	1(0.83)	2(1.12)	3:50	4.1
Level 35	1(0.74)	1(0.79)	2(1.07)	3:39	3.8
Level 40	1(0.70)	1(0.77)	2(1.02)	3:31	3.4
Level 45	1(0.68)	1(0.74)	1(0.99)	3:25	3.1
Level 50	1(0.66)	1(0.72)	1(0.95)	3:18	2.9

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.

1 trainer at level 40

Eternatus0.70

A prepared party

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

1 trainer at level 40

Eternatus0.70
Zacian (Crowned Sword)0.71
Zamazenta (Crowned Shield)0.73
Necrozma (Dusk Mane)0.75
Keldeo0.82
Dialga (Origin)0.87

A mixed local group

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

2 trainers at level 40

Haxorus0.98
Blaziken0.98
Regidrago0.99
Metagross1.02
Dragapult1.02
Tinkaton1.01

The party these numbers assume

1. Eternatus

Dragon Tail + Dynamax Cannon

2. Zacian (Crowned Sword)

Metal Claw + Behemoth Blade

3. Zamazenta (Crowned Shield)

Metal Claw + Behemoth Bash

4. Necrozma (Dusk Mane)

Metal Claw + Sunsteel Strike

5. Keldeo

Low Kick + Secret Sword

6. Dialga (Origin)

Metal Claw + Roar of Time

See the full ranked counter list for Frigibax · 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.