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 3 to be safe — 2 if everyone is prepared

At level 40, a party of Scraggy's top six counters needs 1.79 trainers (round up: 2), and a mixed lobby of ranks 13-24 needs 2.23 (round up: 3). The raid timer is 300 seconds and one prepared trainer alone would take 8:15. No level in this range makes it soloable with a prepared party. A duo works from level 30.

Scraggy · Elite

darkfighting

Weak to

fairyfightingflying

Boss CP: 25,205
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 Scraggy 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	3(2.34)	3(2.50)	4(3.14)	11:29	5.8
Level 25	3(2.03)	3(2.19)	3(2.72)	10:04	5.6
Level 30	2(1.80)	2(1.96)	3(2.44)	9:00	5.2
Level 35	2(1.73)	2(1.87)	3(2.34)	8:37	5.0
Level 40	2(1.64)	2(1.79)	3(2.23)	8:15	4.7
Level 45	2(1.58)	2(1.72)	3(2.16)	7:56	4.5
Level 50	2(1.54)	2(1.68)	3(2.09)	7:45	4.3

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.

2 trainers at level 40

Enamorus (Incarnate)1.64

A prepared party

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

2 trainers at level 40

Enamorus (Incarnate)1.64
Zacian (Crowned Sword)1.74
Enamorus (Therian)1.82
Tapu Koko1.84
Xerneas1.84
Tapu Bulu1.88

A mixed local group

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

3 trainers at level 40

Primarina2.08
Granbull2.10
Rayquaza2.11
Zacian2.15
Sylveon2.17
Galarian Rapidash2.23

The party these numbers assume

1. Enamorus (Incarnate)

Fairy Wind + Dazzling Gleam

2. Zacian (Crowned Sword)

Metal Claw + Play Rough

3. Enamorus (Therian)

Fairy Wind + Dazzling Gleam

4. Tapu Koko

Volt Switch + Nature's Madness

5. Xerneas

Geomancy + Moonblast

6. Tapu Bulu

Bullet Seed + Nature's Madness

See the full ranked counter list for Scraggy · 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.