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 Mega Scovillain's top six counters needs 2.80 trainers (round up: 3), and a mixed lobby of ranks 13-24 needs 3.50 (round up: 4). The raid timer is 300 seconds and one prepared trainer alone would take 13:00. No level in this range makes it soloable with a prepared party.

Mega Scovillain · Primal

grassfire

Weak to

flyingpoisonrock

Boss CP: 59,370
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 Scovillain 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	4(3.67)	5(4.22)	6(5.71)	19:36	6.0
Level 25	3(2.95)	4(3.52)	5(4.66)	16:22	6.0
Level 30	3(2.66)	4(3.05)	5(4.02)	14:10	6.0
Level 35	3(2.56)	3(2.90)	4(3.71)	13:30	6.0
Level 40	3(2.43)	3(2.80)	4(3.50)	13:00	6.0
Level 45	3(2.34)	3(2.69)	4(3.35)	12:31	6.0
Level 50	3(2.24)	3(2.58)	4(3.18)	12:00	5.9

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

Rayquaza2.43

A prepared party

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

3 trainers at level 40

Rayquaza2.43
Eternatus2.48
Moltres2.91
Yveltal2.90
Salamence3.00
Galarian Articuno3.04

A mixed local group

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

4 trainers at level 40

Enamorus (Therian)3.41
Toucannon3.38
Hisuian Braviary3.42
Kyurem (Black)3.45
Tornadus (Therian)3.47
Necrozma (Dawn Wings)3.48

The party these numbers assume

1. Rayquaza

Air Slash + Dragon Ascent

2. Eternatus

Poison Jab + Dynamax Cannon

3. Moltres

Wing Attack + Fly

4. Yveltal

Gust + Oblivion Wing

5. Salamence

Dragon Tail + Fly

6. Galarian Articuno

Psycho Cut + Fly

See the full ranked counter list for Mega Scovillain · 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.