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 Hoppip's top six counters needs 0.75 trainers (round up: 1), and a mixed lobby of ranks 13-24 needs 0.98 (round up: 1). The raid timer is 300 seconds and one prepared trainer alone would take 3:27. A prepared solo becomes possible at level 25. A duo works from level 20.

Hoppip · Tier 5

grassflying

Weak to

iceflyingpoisonrockfire

Boss CP: 10,485
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 Hoppip 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(0.76)	2(1.04)	2(1.35)	4:46	5.2
Level 25	1(0.67)	1(0.91)	2(1.19)	4:11	4.6
Level 30	1(0.61)	1(0.82)	2(1.08)	3:45	3.8
Level 35	1(0.58)	1(0.77)	2(1.03)	3:33	3.4
Level 40	1(0.56)	1(0.75)	1(0.98)	3:27	3.1
Level 45	1(0.54)	1(0.72)	1(0.96)	3:19	2.7
Level 50	1(0.53)	1(0.70)	1(0.92)	3:13	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)0.56

A prepared party

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

1 trainer at level 40

Kyurem (White)0.56
Kyurem (Black)0.75
Galarian Darmanitan (Standard)0.75
Baxcalibur0.78
Mamoswine0.81
Blacephalon0.84

A mixed local group

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

1 trainer at level 40

Mr. Rime0.95
Mewtwo0.95
Frosmoth0.96
Eternatus0.95
Reshiram0.99
Kyurem0.98

The party these numbers assume

1. Kyurem (White)

Ice Fang + Ice Burn

2. Kyurem (Black)

Dragon Tail + Freeze Shock

3. Galarian Darmanitan (Standard)

Ice Fang + Avalanche

4. Baxcalibur

Ice Fang + Avalanche

5. Mamoswine

Powder Snow + Avalanche

6. Blacephalon

Incinerate + Mind Blown

See the full ranked counter list for Hoppip · 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.