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 — 1 if everyone is prepared

At level 40, a party of Tadbulb's top six counters needs 0.96 trainers (round up: 1), and a mixed lobby of ranks 13-24 needs 1.18 (round up: 2). The raid timer is 300 seconds and one prepared trainer alone would take 4:25. A prepared solo becomes possible at level 35. A duo works from level 20.

Tadbulb · Tier 5

electric

Weak to

ground

Boss CP: 13,672
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 Tadbulb 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(1.12)	2(1.28)	2(1.63)	5:52	4.4
Level 25	1(0.99)	2(1.14)	2(1.43)	5:14	3.5
Level 30	1(0.90)	2(1.04)	2(1.30)	4:46	2.8
Level 35	1(0.88)	1(1.00)	2(1.23)	4:35	2.4
Level 40	1(0.84)	1(0.96)	2(1.18)	4:25	2.1
Level 45	1(0.81)	1(0.93)	2(1.15)	4:16	1.9
Level 50	1(0.78)	1(0.90)	2(1.10)	4:08	1.8

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.

1 trainer at level 40

Landorus (Therian)0.84

A prepared party

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

1 trainer at level 40

Landorus (Therian)0.84
Groudon0.93
Eternatus0.97
Excadrill0.99
Mamoswine1.01
Garchomp1.02

A mixed local group

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

2 trainers at level 40

Golurk1.12
Rhydon1.13
Keldeo1.15
Kyurem (White)1.16
Donphan1.16
Mudsdale1.18

The party these numbers assume

1. Landorus (Therian)

Mud Shot + Sandsear Storm

2. Groudon

Mud Shot + Precipice Blades

3. Eternatus

Poison Jab + Dynamax Cannon

4. Excadrill

Mud-Slap + Scorching Sands

5. Mamoswine

Mud-Slap + High Horsepower

6. Garchomp

Mud Shot + Earth Power

See the full ranked counter list for Tadbulb · 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.