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 Nidoking's top six counters needs 1.13 trainers (round up: 2), and a mixed lobby of ranks 13-24 needs 1.39 (round up: 2). The raid timer is 180 seconds and one prepared trainer alone would take 3:18. No level in this range makes it soloable with a prepared party. A duo works from level 20.

Nidoking · Shadow Tier 3

poisonground

Weak to

groundwaterpsychicice

Boss CP: 18,112
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 Nidoking 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(1.54)	2(1.70)	3(2.09)	4:58	6.0
Level 25	2(1.27)	2(1.45)	2(1.77)	4:14	5.9
Level 30	2(1.12)	2(1.27)	2(1.55)	3:43	5.8
Level 35	2(1.06)	2(1.20)	2(1.46)	3:32	5.6
Level 40	2(1.00)	2(1.13)	2(1.39)	3:18	5.4
Level 45	1(0.97)	2(1.08)	2(1.34)	3:10	5.2
Level 50	1(0.94)	2(1.05)	2(1.28)	3:05	5.1

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

Kyurem (White)1.00

A prepared party

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

2 trainers at level 40

Kyurem (White)1.00
Mewtwo1.08
Landorus (Therian)1.10
Kyurem (Black)1.11
Hoopa (Unbound)1.20
Necrozma (Dawn Wings)1.28

A mixed local group

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

2 trainers at level 40

Zamazenta (Crowned Shield)1.32
Regigigas1.33
Zacian (Crowned Sword)1.38
Eternatus1.35
Latios1.38
Hoopa1.38

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. Kyurem (Black)

Dragon Tail + Freeze Shock

5. Hoopa (Unbound)

Confusion + Psychic

6. Necrozma (Dawn Wings)

Psycho Cut + Moongeist Beam

See the full ranked counter list for Nidoking · 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.