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 6 to be safe — 5 if everyone is prepared

At level 40, a party of Mega Floette (Eternal Flower)'s top six counters needs 4.13 trainers (round up: 5), and a mixed lobby of ranks 13-24 needs 5.71 (round up: 6). The raid timer is 300 seconds and one prepared trainer alone would take 18:59. No level in this range makes it soloable with a prepared party.

Mega Floette (Eternal Flower) · Super Mega

fairy

Weak to

poisonsteel

Boss CP: 85,569
Boss HP: 25,000
Raid timer: 300s
Party used: 6

Trainers needed, by attacker level

Scroll sideways for the mixed-lobby column.

Trainers needed to beat Mega Floette (Eternal Flower) 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	6(5.06)	7(6.05)	9(8.37)	27:50	6.0
Level 25	5(4.18)	6(5.10)	8(7.26)	23:28	6.0
Level 30	4(3.88)	5(4.65)	7(6.44)	21:23	6.0
Level 35	4(3.61)	5(4.44)	7(6.01)	20:27	6.0
Level 40	4(3.33)	5(4.13)	6(5.71)	18:59	5.9
Level 45	4(3.25)	4(3.99)	6(5.49)	18:20	5.9
Level 50	4(3.15)	4(3.86)	6(5.32)	17:46	5.8

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.

4 trainers at level 40

Zacian (Crowned Sword)3.33

A prepared party

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

5 trainers at level 40

Zacian (Crowned Sword)3.33
Zamazenta (Crowned Shield)3.38
Necrozma (Dusk Mane)3.41
Eternatus4.68
Metagross4.76
Necrozma (Dawn Wings)5.20

A mixed local group

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

6 trainers at level 40

Genesect (Burn)5.57
Genesect (Chill)5.57
Genesect (Douse)5.57
Genesect (Shock)5.57
Dialga5.62
Melmetal5.60

The party these numbers assume

1. Zacian (Crowned Sword)

Metal Claw + Behemoth Blade

2. Zamazenta (Crowned Shield)

Metal Claw + Behemoth Bash

3. Necrozma (Dusk Mane)

Metal Claw + Sunsteel Strike

4. Eternatus

Poison Jab + Sludge Bomb

5. Metagross

Bullet Punch + Meteor Mash

6. Necrozma (Dawn Wings)

Metal Claw + Moongeist Beam

See the full ranked counter list for Mega Floette (Eternal Flower) · 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.