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 Azelf's top six counters needs 1.73 trainers (round up: 2), and a mixed lobby of ranks 13-24 needs 2.01 (round up: 3). The raid timer is 300 seconds and one prepared trainer alone would take 7:57. No level in this range makes it soloable with a prepared party. A duo works from level 30.

Azelf · Tier 5

psychic

Weak to

bugghostdark

Boss CP: 44,972
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 Azelf 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(2.04)	3(2.50)	4(3.03)	11:32	6.0
Level 25	2(1.68)	3(2.15)	3(2.60)	9:55	6.0
Level 30	2(1.49)	2(1.91)	3(2.25)	8:47	5.8
Level 35	2(1.42)	2(1.81)	3(2.11)	8:19	5.8
Level 40	2(1.35)	2(1.73)	3(2.01)	7:57	5.8
Level 45	2(1.31)	2(1.67)	2(1.93)	7:42	5.7
Level 50	2(1.27)	2(1.61)	2(1.85)	7:26	5.6

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)1.35

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)1.35
Darkrai1.71
Lunala1.79
Tyranitar1.80
Hydreigon1.81
Dragapult1.89

A mixed local group

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

3 trainers at level 40

Eternatus1.95
Kingambit1.94
Zacian (Crowned Sword)1.97
Zamazenta (Crowned Shield)1.97
Incineroar2.00
Gholdengo1.99

The party these numbers assume

1. Necrozma (Dawn Wings)

Shadow Claw + Moongeist Beam

2. Darkrai

Snarl + Foul Play

3. Lunala

Shadow Claw + Shadow Ball

4. Tyranitar

Bite + Brutal Swing

5. Hydreigon

Bite + Brutal Swing

6. Dragapult

Astonish + Shadow Ball

See the full ranked counter list for Azelf · 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.