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 Mega Absol Z's top six counters needs 2.64 trainers (round up: 3), and a mixed lobby of ranks 13-24 needs 3.32 (round up: 4). The raid timer is 300 seconds and one prepared trainer alone would take 12:16. No level in this range makes it soloable with a prepared party.

Mega Absol Z · Mega Legendary

darkghost

Weak to

fairy

Boss CP: 64,382
Boss HP: 22,500
Raid timer: 300s
Party used: 6

Trainers needed, by attacker level

Scroll sideways for the mixed-lobby column.

Trainers needed to beat Mega Absol Z 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(3.31)	4(3.98)	6(5.42)	18:31	6.0
Level 25	3(2.96)	4(3.31)	5(4.31)	15:23	6.0
Level 30	3(2.63)	3(2.95)	4(3.68)	13:43	6.0
Level 35	3(2.51)	3(2.78)	4(3.47)	12:55	6.0
Level 40	3(2.31)	3(2.64)	4(3.32)	12:16	6.0
Level 45	3(2.27)	3(2.56)	4(3.21)	11:54	6.0
Level 50	3(2.21)	3(2.46)	4(3.04)	11:27	6.0

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

Zacian (Crowned Sword)2.31

A prepared party

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

3 trainers at level 40

Zacian (Crowned Sword)2.31
Eternatus2.54
Zamazenta (Crowned Shield)2.64
Tapu Koko2.67
Tapu Bulu2.76
Tapu Lele2.90

A mixed local group

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

4 trainers at level 40

Zacian3.08
Kyurem (White)3.09
Togekiss3.16
Rayquaza3.25
Dialga (Origin)3.30
Sylveon3.39

The party these numbers assume

1. Zacian (Crowned Sword)

Metal Claw + Play Rough

2. Eternatus

Dragon Tail + Dynamax Cannon

3. Zamazenta (Crowned Shield)

Metal Claw + Behemoth Bash

4. Tapu Koko

Volt Switch + Nature's Madness

5. Tapu Bulu

Bullet Seed + Nature's Madness

6. Tapu Lele

Astonish + Nature's Madness

See the full ranked counter list for Mega Absol Z · 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.