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 Throh's top six counters needs 2.84 trainers (round up: 3), and a mixed lobby of ranks 13-24 needs 3.36 (round up: 4). The raid timer is 300 seconds and one prepared trainer alone would take 13:25. No level in this range makes it soloable with a prepared party.

Throh · Shadow Tier 5

fighting

Weak to

flyingpsychicfairy

Boss CP: 30,297
Boss HP: 15,000
Raid timer: 300s
Party used: 6

Trainers needed, by attacker level

Scroll sideways for the mixed-lobby column.

Trainers needed to beat Throh 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(3.70)	5(4.04)	5(4.75)	19:04	6.0
Level 25	4(3.26)	4(3.50)	5(4.16)	16:31	5.8
Level 30	3(2.87)	4(3.13)	4(3.70)	14:48	5.6
Level 35	3(2.78)	3(2.95)	4(3.52)	13:57	5.4
Level 40	3(2.68)	3(2.84)	4(3.36)	13:25	5.3
Level 45	3(2.54)	3(2.74)	4(3.26)	12:58	5.2
Level 50	3(2.49)	3(2.67)	4(3.16)	12:36	5.0

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

Rayquaza2.68

A prepared party

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

3 trainers at level 40

Rayquaza2.68
Mewtwo2.70
Enamorus (Incarnate)2.75
Galarian Articuno2.92
Hoopa (Unbound)2.97
Tapu Lele3.02

A mixed local group

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

4 trainers at level 40

Necrozma (Dusk Mane)3.23
Eternatus3.27
Lunala3.28
Hoopa3.30
Salamence3.31
Lugia3.36

The party these numbers assume

1. Rayquaza

Air Slash + Dragon Ascent

2. Mewtwo

Confusion + Psystrike

3. Enamorus (Incarnate)

Fairy Wind + Fly

4. Galarian Articuno

Psycho Cut + Fly

5. Hoopa (Unbound)

Confusion + Psychic

6. Tapu Lele

Confusion + Nature's Madness

See the full ranked counter list for Throh · 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.