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 2 to be safe — 2 if everyone is prepared

At level 40, a party of Bayleef's top six counters needs 1.02 trainers (round up: 2), and a mixed lobby of ranks 13-24 needs 1.26 (round up: 2). The raid timer is 180 seconds and one prepared trainer alone would take 3:00. A prepared solo becomes possible at level 45. A duo works from level 20.

Bayleef · Shadow Tier 3

grass

Weak to

flyingpoisonbugfireice

Boss CP: 11,297
Boss HP: 4,000
Raid timer: 180s
Party used: 6

Trainers needed, by attacker level

Scroll sideways for the mixed-lobby column.

Trainers needed to beat Bayleef 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	2(1.37)	2(1.43)	2(1.79)	4:11	4.6
Level 25	2(1.18)	2(1.25)	2(1.55)	3:40	4.0
Level 30	2(1.05)	2(1.13)	2(1.38)	3:18	3.4
Level 35	2(1.02)	2(1.06)	2(1.32)	3:07	3.2
Level 40	1(0.96)	2(1.02)	2(1.26)	3:00	2.8
Level 45	1(0.95)	1(0.99)	2(1.22)	2:54	2.6
Level 50	1(0.93)	1(0.96)	2(1.18)	2:49	2.5

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

Kyurem (White)0.96

A prepared party

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

2 trainers at level 40

Kyurem (White)0.96
Rayquaza0.99
Blacephalon0.99
Eternatus1.04
Kyurem (Black)1.07
Reshiram1.09

A mixed local group

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

2 trainers at level 40

Cinderace1.23
Galarian Articuno1.23
Blaziken1.24
Toucannon1.25
Volcarona1.24
Darmanitan (Standard)1.25

The party these numbers assume

1. Kyurem (White)

Ice Fang + Ice Burn

2. Rayquaza

Air Slash + Dragon Ascent

3. Blacephalon

Incinerate + Mind Blown

4. Eternatus

Poison Jab + Dynamax Cannon

5. Kyurem (Black)

Dragon Tail + Freeze Shock

6. Reshiram

Fire Fang + Fusion Flare

See the full ranked counter list for Bayleef · 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.