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 4 to be safe — 4 if everyone is prepared

At level 40, a party of Nidoqueen's top six counters needs 3.18 trainers (round up: 4), and a mixed lobby of ranks 13-24 needs 3.84 (round up: 4). The raid timer is 300 seconds and one prepared trainer alone would take 15:02. No level in this range makes it soloable with a prepared party.

Nidoqueen · Shadow Tier 5

poisonground

Weak to

groundwaterpsychicice

Boss CP: 32,746
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 Nidoqueen 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	5(4.14)	5(4.71)	7(6.02)	22:15	6.0
Level 25	4(3.52)	5(4.06)	6(5.03)	19:10	6.0
Level 30	4(3.13)	4(3.43)	5(4.32)	16:12	6.0
Level 35	4(3.01)	4(3.31)	5(4.07)	15:37	6.0
Level 40	3(2.92)	4(3.18)	4(3.84)	15:02	6.0
Level 45	3(2.76)	4(3.06)	4(3.68)	14:28	5.9
Level 50	3(2.64)	3(2.95)	4(3.58)	13:55	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.

3 trainers at level 40

Kyurem (White)2.92

A prepared party

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

4 trainers at level 40

Kyurem (White)2.92
Mewtwo2.96
Landorus (Therian)3.16
Hoopa (Unbound)3.32
Kyurem (Black)3.34
Necrozma (Dawn Wings)3.39

A mixed local group

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

4 trainers at level 40

Eternatus3.73
Quaquaval3.78
Primarina3.82
Landorus (Incarnate)3.84
Latios3.84
Greninja3.82

The party these numbers assume

1. Kyurem (White)

Ice Fang + Ice Burn

2. Mewtwo

Psycho Cut + Psystrike

3. Landorus (Therian)

Mud Shot + Sandsear Storm

4. Hoopa (Unbound)

Confusion + Psychic

5. Kyurem (Black)

Dragon Tail + Freeze Shock

6. Necrozma (Dawn Wings)

Psycho Cut + Moongeist Beam

See the full ranked counter list for Nidoqueen · 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.