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 Hisuian Typhlosion's top six counters needs 1.94 trainers (round up: 2), and a mixed lobby of ranks 13-24 needs 2.20 (round up: 3). The raid timer is 300 seconds and one prepared trainer alone would take 8:56. No level in this range makes it soloable with a prepared party. A duo works from level 40.

Hisuian Typhlosion · Tier 5

fireghost

Weak to

groundrockghostwaterdark

Boss CP: 42,372
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 Hisuian Typhlosion 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(3.20)	4(3.04)	4(3.36)	14:00	6.0
Level 25	3(2.36)	3(2.51)	3(2.85)	11:33	6.0
Level 30	3(2.13)	3(2.19)	3(2.46)	10:05	6.0
Level 35	3(2.11)	3(2.07)	3(2.32)	9:32	6.0
Level 40	2(1.84)	2(1.94)	3(2.20)	8:56	5.9
Level 45	2(1.59)	2(1.85)	3(2.13)	8:32	5.9
Level 50	2(1.49)	2(1.79)	3(2.05)	8:15	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.

2 trainers at level 40

Necrozma (Dawn Wings)1.84

A prepared party

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

2 trainers at level 40

Necrozma (Dawn Wings)1.84
Landorus (Therian)1.86
Inteleon1.97
Darkrai1.97
Kyogre2.00
Hydreigon2.01

A mixed local group

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

3 trainers at level 40

Glimmora2.13
Rhyperior2.12
Quaquaval2.19
Dragapult2.18
Primarina2.19
Crawdaunt2.20

The party these numbers assume

1. Necrozma (Dawn Wings)

Psycho Cut + Moongeist Beam

2. Landorus (Therian)

Mud Shot + Sandsear Storm

3. Inteleon

Water Gun + Hydro Cannon

4. Darkrai

Snarl + Foul Play

5. Kyogre

Waterfall + Origin Pulse

6. Hydreigon

Bite + Brutal Swing

See the full ranked counter list for Hisuian Typhlosion · 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.