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 Orbeetle's top six counters needs 0.78 trainers (round up: 1), and a mixed lobby of ranks 13-24 needs 0.94 (round up: 1). The raid timer is 180 seconds and one prepared trainer alone would take 2:17. A prepared solo becomes possible at level 25. A duo works from level 20.

Orbeetle · Tier 3

bugpsychic

Weak to

flyingrockbugghostfiredark

Boss CP: 16,383
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 Orbeetle 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(1.01)	2(1.12)	2(1.35)	3:17	5.5
Level 25	1(0.84)	1(0.96)	2(1.18)	2:49	4.8
Level 30	1(0.79)	1(0.86)	2(1.03)	2:32	3.9
Level 35	1(0.75)	1(0.82)	1(0.99)	2:23	3.4
Level 40	1(0.69)	1(0.78)	1(0.94)	2:17	3.0
Level 45	1(0.70)	1(0.76)	1(0.92)	2:13	2.7
Level 50	1(0.68)	1(0.74)	1(0.88)	2:09	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

Necrozma (Dawn Wings)0.69

A prepared party

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

1 trainer at level 40

Necrozma (Dawn Wings)0.69
Blacephalon0.73
Rayquaza0.76
Reshiram0.81
Salamence0.85
Moltres0.85

A mixed local group

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

1 trainer at level 40

Zacian (Crowned Sword)0.93
Honchkrow0.93
Cinderace0.93
Staraptor0.94
Lunala0.94
Rampardos0.93

The party these numbers assume

1. Necrozma (Dawn Wings)

Shadow Claw + Moongeist Beam

2. Blacephalon

Astonish + Mind Blown

3. Rayquaza

Air Slash + Dragon Ascent

4. Reshiram

Fire Fang + Fusion Flare

5. Salamence

Fire Fang + Fly

6. Moltres

Fire Spin + Fly

See the full ranked counter list for Orbeetle · 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.