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 Runerigus's top six counters needs 1.63 trainers (round up: 2), and a mixed lobby of ranks 13-24 needs 1.95 (round up: 2). The raid timer is 180 seconds and one prepared trainer alone would take 4:46. No level in this range makes it soloable with a prepared party. A duo works from level 30.

Runerigus · Shadow Tier 3

groundghost

Weak to

ghostwatergrassicedark

Boss CP: 17,871
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 Runerigus 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(2.10)	3(2.39)	3(2.81)	7:00	6.0
Level 25	2(1.78)	3(2.02)	3(2.43)	5:55	5.8
Level 30	2(1.57)	2(1.81)	3(2.15)	5:18	5.4
Level 35	2(1.54)	2(1.69)	3(2.04)	4:56	5.2
Level 40	2(1.47)	2(1.63)	2(1.95)	4:46	5.1
Level 45	2(1.39)	2(1.54)	2(1.91)	4:30	4.8
Level 50	2(1.35)	2(1.50)	2(1.85)	4:24	4.6

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

Kyurem (White)1.47

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)1.47
Kyurem (Black)1.51
Necrozma (Dawn Wings)1.50
Kartana1.76
Darkrai1.76
Inteleon1.78

A mixed local group

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

2 trainers at level 40

Hydreigon1.91
Rillaboom1.91
Necrozma (Dusk Mane)1.93
Zamazenta (Crowned Shield)1.93
Lunala1.93
Absol1.95

The party these numbers assume

1. Kyurem (White)

Ice Fang + Ice Burn

2. Kyurem (Black)

Shadow Claw + Freeze Shock

3. Necrozma (Dawn Wings)

Psycho Cut + Moongeist Beam

4. Kartana

Razor Leaf + Leaf Blade

5. Darkrai

Snarl + Foul Play

6. Inteleon

Water Gun + Hydro Cannon

See the full ranked counter list for Runerigus · 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.