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 Gible's top six counters needs 1.17 trainers (round up: 2), and a mixed lobby of ranks 13-24 needs 1.61 (round up: 2). The raid timer is 300 seconds and one prepared trainer alone would take 5:31. No level in this range makes it soloable with a prepared party. A duo works from level 20.

Gible · Shadow Tier 5

dragonground

Weak to

icedragonfairy

Boss CP: 16,938
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 Gible 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(1.25)	2(1.64)	3(2.28)	7:45	6.0
Level 25	2(1.10)	2(1.43)	2(1.99)	6:46	6.0
Level 30	1(1.00)	2(1.28)	2(1.77)	6:02	5.9
Level 35	1(0.94)	2(1.22)	2(1.68)	5:45	5.8
Level 40	1(0.91)	2(1.17)	2(1.61)	5:31	5.7
Level 45	1(0.87)	2(1.12)	2(1.55)	5:17	5.5
Level 50	1(0.84)	2(1.08)	2(1.51)	5:07	5.4

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)0.91

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)0.91
Kyurem (Black)1.01
Eternatus1.25
Galarian Darmanitan (Standard)1.24
Baxcalibur1.28
Mamoswine1.32

A mixed local group

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

2 trainers at level 40

Mewtwo1.53
Palkia (Origin)1.53
Mr. Rime1.56
Frosmoth1.57
Avalugg1.60
Dialga (Origin)1.60

The party these numbers assume

1. Kyurem (White)

Ice Fang + Ice Burn

2. Kyurem (Black)

Dragon Tail + Freeze Shock

3. Eternatus

Dragon Tail + Dynamax Cannon

4. Galarian Darmanitan (Standard)

Ice Fang + Avalanche

5. Baxcalibur

Ice Fang + Avalanche

6. Mamoswine

Powder Snow + Avalanche

See the full ranked counter list for Gible · 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.