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 Diggersby's top six counters needs 1.07 trainers (round up: 2), and a mixed lobby of ranks 13-24 needs 1.31 (round up: 2). The raid timer is 180 seconds and one prepared trainer alone would take 3:09. No level in this range makes it soloable with a prepared party. A duo works from level 20.

Diggersby · Shadow Tier 3

normalground

Weak to

fightingwatergrassice

Boss CP: 10,472
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 Diggersby 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(1.38)	2(1.56)	2(1.84)	4:34	5.8
Level 25	2(1.21)	2(1.33)	2(1.61)	3:54	5.5
Level 30	2(1.05)	2(1.18)	2(1.45)	3:27	4.9
Level 35	2(1.01)	2(1.11)	2(1.37)	3:15	4.7
Level 40	1(0.96)	2(1.07)	2(1.31)	3:09	4.5
Level 45	1(0.95)	2(1.04)	2(1.26)	3:03	4.4
Level 50	1(0.92)	2(1.01)	2(1.22)	2:57	4.2

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)0.96

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)0.96
Keldeo0.97
Kyurem (Black)1.11
Lucario1.12
Terrakion1.14
Kartana1.15

A mixed local group

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

2 trainers at level 40

Rillaboom1.26
Conkeldurr1.29
Quaquaval1.30
Pheromosa1.31
Breloom1.29
Gallade1.30

The party these numbers assume

1. Kyurem (White)

Ice Fang + Ice Burn

2. Keldeo

Low Kick + Secret Sword

3. Kyurem (Black)

Dragon Tail + Freeze Shock

4. Lucario

Force Palm + Aura Sphere

5. Terrakion

Double Kick + Sacred Sword

6. Kartana

Razor Leaf + Sacred Sword

See the full ranked counter list for Diggersby · 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.