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 Mega Emboar's top six counters needs 3.09 trainers (round up: 4), and a mixed lobby of ranks 13-24 needs 3.57 (round up: 4). The raid timer is 300 seconds and one prepared trainer alone would take 14:23. No level in this range makes it soloable with a prepared party.

Mega Emboar · Mega Legendary

firefighting

Weak to

flyinggroundwaterpsychic

Boss CP: 65,489
Boss HP: 22,500
Raid timer: 300s
Party used: 6

Trainers needed, by attacker level

Scroll sideways for the mixed-lobby column.

Trainers needed to beat Mega Emboar 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(4.41)	5(4.82)	6(5.54)	22:25	6.0
Level 25	4(3.46)	5(4.06)	5(4.53)	18:54	6.0
Level 30	4(3.06)	4(3.57)	4(4.00)	16:36	6.0
Level 35	3(2.96)	4(3.29)	4(3.74)	15:17	6.0
Level 40	3(2.80)	4(3.09)	4(3.57)	14:23	6.0
Level 45	3(2.67)	3(2.98)	4(3.44)	13:50	6.0
Level 50	3(2.56)	3(2.87)	4(3.30)	13:20	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

Rayquaza2.80

A prepared party

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

4 trainers at level 40

Rayquaza2.80
Mewtwo2.89
Hoopa (Unbound)3.14
Galarian Articuno3.22
Moltres3.25
Necrozma (Dawn Wings)3.26

A mixed local group

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

4 trainers at level 40

Lugia3.46
Eternatus3.47
Latios3.48
Salamence3.50
Enamorus (Therian)3.52
Hoopa3.55

The party these numbers assume

1. Rayquaza

Air Slash + Dragon Ascent

2. Mewtwo

Confusion + Psystrike

3. Hoopa (Unbound)

Confusion + Psychic

4. Galarian Articuno

Confusion + Fly

5. Moltres

Wing Attack + Fly

6. Necrozma (Dawn Wings)

Psycho Cut + Moongeist Beam

See the full ranked counter list for Mega Emboar · 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.