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 3 to be safe — 2 if everyone is prepared

At level 40, a party of Venipede's top six counters needs 1.81 trainers (round up: 2), and a mixed lobby of ranks 13-24 needs 2.13 (round up: 3). The raid timer is 300 seconds and one prepared trainer alone would take 8:33. No level in this range makes it soloable with a prepared party. A duo works from level 30.

Venipede · Shadow 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	3(2.27)	3(2.54)	3(2.96)	11:59	5.8
Level 25	2(1.94)	3(2.21)	3(2.60)	10:25	5.5
Level 30	2(1.72)	2(1.98)	3(2.32)	9:21	5.3
Level 35	2(1.65)	2(1.90)	3(2.22)	8:58	5.1
Level 40	2(1.60)	2(1.81)	3(2.13)	8:33	4.9
Level 45	2(1.52)	2(1.74)	3(2.05)	8:12	4.9
Level 50	2(1.47)	2(1.68)	2(1.98)	7:56	4.8

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.

2 trainers at level 40

Blacephalon1.60

A prepared party

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

2 trainers at level 40

Blacephalon1.60
Rayquaza1.73
Mewtwo1.79
Reshiram1.86
Hoopa (Unbound)1.94
Moltres1.95

A mixed local group

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

3 trainers at level 40

Yveltal2.05
Enamorus (Incarnate)2.10
Heatran2.10
Toucannon2.11
Zacian (Crowned Sword)2.11
Blaziken2.14

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. Moltres

Fire Spin + 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.