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 Dachsbun's top six counters needs 1.95 trainers (round up: 2), and a mixed lobby of ranks 13-24 needs 2.71 (round up: 3). The raid timer is 300 seconds and one prepared trainer alone would take 8:58. No level in this range makes it soloable with a prepared party. A duo works from level 40.

Dachsbun · Tier 5

fairy

Weak to

poisonsteel

Boss CP: 32,107
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 Dachsbun 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(2.22)	3(2.72)	4(3.67)	12:31	5.7
Level 25	2(1.95)	3(2.37)	4(3.29)	10:55	5.3
Level 30	2(1.69)	3(2.14)	3(2.91)	9:52	4.8
Level 35	2(1.67)	3(2.05)	3(2.80)	9:26	4.6
Level 40	2(1.62)	2(1.95)	3(2.71)	8:58	4.4
Level 45	2(1.52)	2(1.90)	3(2.62)	8:45	4.3
Level 50	2(1.47)	2(1.83)	3(2.50)	8:25	4.1

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

Zacian (Crowned Sword)1.62

A prepared party

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

2 trainers at level 40

Zacian (Crowned Sword)1.62
Necrozma (Dusk Mane)1.64
Zamazenta (Crowned Shield)1.65
Eternatus2.19
Metagross2.28
Necrozma (Dawn Wings)2.32

A mixed local group

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

3 trainers at level 40

Lucario2.56
Roserade2.62
Genesect2.70
Genesect (Burn)2.70
Genesect (Chill)2.70
Genesect (Douse)2.70

The party these numbers assume

1. Zacian (Crowned Sword)

Metal Claw + Behemoth Blade

2. Necrozma (Dusk Mane)

Metal Claw + Sunsteel Strike

3. Zamazenta (Crowned Shield)

Metal Claw + Behemoth Bash

4. Eternatus

Poison Jab + Sludge Bomb

5. Metagross

Bullet Punch + Meteor Mash

6. Necrozma (Dawn Wings)

Metal Claw + Moongeist Beam

See the full ranked counter list for Dachsbun · 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.