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 Venipede's top six counters needs 1.01 trainers (round up: 2), and a mixed lobby of ranks 13-24 needs 1.20 (round up: 2). The raid timer is 300 seconds and one prepared trainer alone would take 4:38. A prepared solo becomes possible at level 45. A duo works from level 20.

Venipede · Tier 5

bugpoison

Weak to

flyingrockfirepsychic

Boss CP: 12,815
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 Venipede 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(1.24)	2(1.41)	2(1.66)	6:28	5.8
Level 25	2(1.08)	2(1.23)	2(1.45)	5:39	5.4
Level 30	1(0.96)	2(1.10)	2(1.30)	5:05	5.0
Level 35	1(0.92)	2(1.05)	2(1.25)	4:50	4.7
Level 40	1(0.88)	2(1.01)	2(1.20)	4:38	4.4
Level 45	1(0.85)	1(0.97)	2(1.16)	4:29	4.0
Level 50	1(0.82)	1(0.94)	2(1.12)	4:19	3.7

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

Blacephalon0.88

A prepared party

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

2 trainers at level 40

Blacephalon0.88
Rayquaza0.96
Mewtwo1.00
Reshiram1.05
Hoopa (Unbound)1.07
Salamence1.09

A mixed local group

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

2 trainers at level 40

Toucannon1.17
Cinderace1.17
Volcarona1.17
Enamorus (Incarnate)1.17
Darmanitan (Standard)1.19
Heatran1.20

The party these numbers assume

1. Blacephalon

Incinerate + Mind Blown

2. Rayquaza

Air Slash + Dragon Ascent

3. Mewtwo

Confusion + Psystrike

4. Reshiram

Fire Fang + Fusion Flare

5. Hoopa (Unbound)

Confusion + Psychic

6. Salamence

Fire Fang + Fly

See the full ranked counter list for Venipede · 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.