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 — 3 if everyone is prepared

At level 40, a party of Simipour's top six counters needs 2.51 trainers (round up: 3), and a mixed lobby of ranks 13-24 needs 3.06 (round up: 4). The raid timer is 300 seconds and one prepared trainer alone would take 11:32. No level in this range makes it soloable with a prepared party.

Simipour · Elite

water

Weak to

grasselectric

Boss CP: 38,022
Boss HP: 20,000
Raid timer: 300s
Party used: 6

Trainers needed, by attacker level

Scroll sideways for the mixed-lobby column.

Trainers needed to beat Simipour 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(4.66)	5(4.12)	5(4.57)	18:59	6.0
Level 25	4(3.30)	4(3.42)	4(3.83)	15:43	6.0
Level 30	3(2.75)	3(2.87)	4(3.39)	13:13	6.0
Level 35	3(2.65)	3(2.63)	4(3.19)	12:07	6.0
Level 40	3(2.47)	3(2.51)	4(3.06)	11:32	6.0
Level 45	3(2.39)	3(2.42)	3(2.94)	11:07	6.0
Level 50	3(2.31)	3(2.33)	3(2.77)	10:42	6.0

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

Zeraora2.47

A prepared party

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

3 trainers at level 40

Zeraora2.47
Xurkitree2.49
Kartana2.48
Zekrom2.49
Thundurus (Therian)2.55
Shaymin (Sky)2.55

A mixed local group

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

4 trainers at level 40

Meowscarada2.90
Tapu Bulu2.96
Roserade3.01
Chesnaught3.03
Zapdos3.04
Decidueye3.05

The party these numbers assume

1. Zeraora

Volt Switch + Plasma Fists

2. Xurkitree

Thunder Shock + Discharge

3. Kartana

Razor Leaf + Leaf Blade

4. Zekrom

Charge Beam + Fusion Bolt

5. Thundurus (Therian)

Volt Switch + Wildbolt Storm

6. Shaymin (Sky)

Magical Leaf + Grass Knot

See the full ranked counter list for Simipour · 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.