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 1 to be safe — 1 if everyone is prepared

At level 40, a party of Gouging Fire's top six counters needs 0.68 trainers (round up: 1), and a mixed lobby of ranks 13-24 needs 0.81 (round up: 1). The raid timer is 180 seconds and one prepared trainer alone would take 1:59. A prepared solo becomes possible at level 20. A duo works from level 20.

Gouging Fire · Tier 3

firedragon

Weak to

groundrockdragon

Boss CP: 19,711
Boss HP: 3,600
Raid timer: 180s
Party used: 6

Trainers needed, by attacker level

Scroll sideways for the mixed-lobby column.

Trainers needed to beat Gouging Fire 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	1(0.72)	1(0.90)	2(1.09)	2:39	3.1
Level 25	1(0.62)	1(0.80)	1(0.98)	2:20	2.1
Level 30	1(0.61)	1(0.73)	1(0.88)	2:08	1.5
Level 35	1(0.56)	1(0.70)	1(0.84)	2:02	1.3
Level 40	1(0.55)	1(0.68)	1(0.81)	1:59	1.1
Level 45	1(0.54)	1(0.66)	1(0.79)	1:55	1.0
Level 50	1(0.52)	1(0.64)	1(0.77)	1:52	0.9

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.

1 trainer at level 40

Eternatus0.55

A prepared party

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

1 trainer at level 40

Eternatus0.55
Palkia (Origin)0.68
Kyurem (Black)0.69
Rayquaza0.71
Baxcalibur0.71
Haxorus0.72

A mixed local group

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

1 trainer at level 40

Dragapult0.76
Regidrago0.78
Dragonite0.79
Groudon0.79
Dialga0.78
Reshiram0.79

The party these numbers assume

1. Eternatus

Dragon Tail + Dynamax Cannon

2. Palkia (Origin)

Dragon Tail + Spacial Rend

3. Kyurem (Black)

Dragon Tail + Freeze Shock

4. Rayquaza

Dragon Tail + Breaking Swipe

5. Baxcalibur

Dragon Breath + Glaive Rush

6. Haxorus

Dragon Tail + Breaking Swipe

See the full ranked counter list for Gouging Fire · 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.