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 Shinx's top six counters needs 0.86 trainers (round up: 1), and a mixed lobby of ranks 13-24 needs 1.06 (round up: 2). The raid timer is 300 seconds and one prepared trainer alone would take 3:57. A prepared solo becomes possible at level 30. A duo works from level 20.

Shinx · Tier 5

electric

Weak to

ground

Boss CP: 14,369
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 Shinx 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(1.04)	2(1.18)	2(1.48)	5:26	5.5
Level 25	1(0.93)	2(1.03)	2(1.28)	4:44	4.6
Level 30	1(0.82)	1(0.93)	2(1.16)	4:15	3.5
Level 35	1(0.77)	1(0.89)	2(1.11)	4:05	3.0
Level 40	1(0.75)	1(0.86)	2(1.06)	3:57	2.8
Level 45	1(0.71)	1(0.82)	2(1.03)	3:47	2.3
Level 50	1(0.70)	1(0.80)	1(0.99)	3:40	2.1

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.

1 trainer at level 40

Landorus (Therian)0.75

A prepared party

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

1 trainer at level 40

Landorus (Therian)0.75
Groudon0.84
Eternatus0.86
Excadrill0.88
Mamoswine0.90
Necrozma (Dawn Wings)0.91

A mixed local group

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

2 trainers at level 40

Rhydon1.01
Golurk1.01
Blacephalon1.03
Kyurem (White)1.04
Keldeo1.03
Mudsdale1.06

The party these numbers assume

1. Landorus (Therian)

Mud Shot + Sandsear Storm

2. Groudon

Mud Shot + Precipice Blades

3. Eternatus

Poison Jab + Dynamax Cannon

4. Excadrill

Mud-Slap + Scorching Sands

5. Mamoswine

Mud-Slap + High Horsepower

6. Necrozma (Dawn Wings)

Psycho Cut + Moongeist Beam

See the full ranked counter list for Shinx · 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.