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 Dusclops's top six counters needs 1.74 trainers (round up: 2), and a mixed lobby of ranks 13-24 needs 1.96 (round up: 2). The raid timer is 180 seconds and one prepared trainer alone would take 5:06. No level in this range makes it soloable with a prepared party. A duo works from level 30.

Dusclops · Shadow Tier 3

ghost

Weak to

ghostdark

Boss CP: 13,872
Boss HP: 4,000
Raid timer: 180s
Party used: 6

Trainers needed, by attacker level

Scroll sideways for the mixed-lobby column.

Trainers needed to beat Dusclops 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(1.98)	3(2.44)	3(2.77)	7:09	5.0
Level 25	2(1.82)	3(2.06)	3(2.45)	6:01	4.5
Level 30	2(1.71)	2(1.92)	3(2.20)	5:37	3.8
Level 35	2(1.59)	2(1.83)	3(2.10)	5:21	3.6
Level 40	2(1.38)	2(1.74)	2(1.96)	5:06	3.5
Level 45	2(1.34)	2(1.72)	2(1.91)	5:02	3.2
Level 50	2(1.28)	2(1.65)	2(1.84)	4:50	3.1

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

Necrozma (Dawn Wings)1.38

A prepared party

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

2 trainers at level 40

Necrozma (Dawn Wings)1.38
Darkrai1.70
Blacephalon1.79
Kyurem (Black)1.84
Tyranitar1.87
Hydreigon1.88

A mixed local group

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

2 trainers at level 40

Urshifu (Single Strike)1.92
Dragapult1.93
Chandelure1.93
Zoroark1.95
Eternatus1.94
Hisuian Zoroark1.95

The party these numbers assume

1. Necrozma (Dawn Wings)

Shadow Claw + Moongeist Beam

2. Darkrai

Snarl + Foul Play

3. Blacephalon

Astonish + Shadow Ball

4. Kyurem (Black)

Shadow Claw + Freeze Shock

5. Tyranitar

Bite + Brutal Swing

6. Hydreigon

Bite + Brutal Swing

See the full ranked counter list for Dusclops · 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.