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 5 to be safe — 4 if everyone is prepared

At level 40, a party of Mega Scolipede's top six counters needs 3.70 trainers (round up: 4), and a mixed lobby of ranks 13-24 needs 4.40 (round up: 5). The raid timer is 300 seconds and one prepared trainer alone would take 17:13. No level in this range makes it soloable with a prepared party.

Mega Scolipede · Primal

bugpoison

Weak to

flyingrockfirepsychic

Boss CP: 66,916
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 Scolipede 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(5.30)	6(5.51)	7(6.66)	25:37	6.0
Level 25	5(4.55)	5(4.79)	6(5.59)	22:16	6.0
Level 30	4(3.92)	5(4.13)	5(4.93)	19:12	6.0
Level 35	4(3.57)	4(3.90)	5(4.67)	18:07	6.0
Level 40	4(3.37)	4(3.70)	5(4.40)	17:13	6.0
Level 45	4(3.27)	4(3.59)	5(4.27)	16:41	6.0
Level 50	4(3.12)	4(3.43)	5(4.10)	15:58	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.

4 trainers at level 40

Blacephalon3.37

A prepared party

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

4 trainers at level 40

Blacephalon3.37
Rayquaza3.54
Mewtwo3.65
Reshiram3.80
Salamence3.91
Moltres3.96

A mixed local group

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

5 trainers at level 40

Chandelure4.30
Toucannon4.31
Zacian (Crowned Sword)4.35
Eternatus4.37
Lunala4.35
Lugia4.41

The party these numbers assume

1. Blacephalon

Incinerate + Mind Blown

2. Rayquaza

Air Slash + Dragon Ascent

3. Mewtwo

Psycho Cut + Psystrike

4. Reshiram

Fire Fang + Fusion Flare

5. Salamence

Fire Fang + Fly

6. Moltres

Fire Spin + Fly

See the full ranked counter list for Mega Scolipede · 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.