Observed target KO or switch rate is upstream p: the fraction of relevant encounters where the target was knocked out or switched out. Standard error is upstream d. The conservative score is p − 4d. These ladder observations do not prove a set-specific counter.
How to read this table
Use encounter count and standard error to judge the sample. Damage estimates below use inferred sets and remain separate from the observed ladder metric.
#
Checker
Encounters
Conservative score
Target KO or switch rate
01
Serperior
Grass
DEFENSIVE CHECK
View matchup
28.549
91.5%
Standard error 5.21 points
▾
252+ Atk Garchomp Outrage vs. 252 HP / 252+ Def Serperior: 160-190 (45.1 - 53.6%) -- 39.8% chance to 2HKO
02
Weavile
DarkIce
OFFENSIVE CHECK
View matchup
38.4
75.3%
Standard error 6.96 points
▾
252+ Atk Choice Band Weavile Icicle Crash vs. 252 HP / 0 Def Garchomp: 904-1068 (215.2 - 254.2%) -- guaranteed OHKO
03
Thundurus
ElectricFlying
OFFENSIVE CHECK
View matchup
22.914
77.8%
Standard error 8.68 points
▾
252+ SpA Thundurus Hidden Power Ice vs. 252 HP / 252+ SpD Garchomp: 224-268 (53.3 - 63.8%) -- guaranteed 2HKO
04
Clefable
Fairy
DEFENSIVE CHECK
View matchup
101.401
70.0%
Standard error 7.78 points
▾
252+ Atk Garchomp Earthquake vs. 252 HP / 252+ Def Clefable: 159-187 (40.3 - 47.4%) -- guaranteed 3HKO after Leftovers recovery
05
Keldeo
WaterFighting
OFFENSIVE CHECK
View matchup
32.907
68.4%
Standard error 8.11 points
▾
252+ SpA Choice Specs Keldeo Icy Wind vs. 252 HP / 252+ SpD Garchomp: 316-376 (75.2 - 89.5%) -- guaranteed 2HKO
06
Skarmory
SteelFlying
DEFENSIVE CHECK
View matchup
27.587
65.7%
Standard error 9.04 points
▾
0- SpA Garchomp Fire Blast vs. 252 HP / 0 SpD Skarmory: 158-188 (47.3 - 56.2%) -- 82.4% chance to 2HKO
07
Zapdos
ElectricFlying
SOFT CHECK
View matchup
65.367
54.3%
Standard error 8.54 points
▾
252+ SpA Zapdos Hidden Power Ice vs. 252 HP / 252+ SpD Garchomp: 224-268 (53.3 - 63.8%) -- guaranteed 2HKO
08
Landorus-Therian
GroundFlying
SOFT CHECK
View matchup
106.03
52.2%
Standard error 8.32 points
▾
252+ Atk Landorus-Therian Explosion vs. 252 HP / 0 Def Garchomp: 338-398 (80.4 - 94.7%) -- guaranteed 2HKO
09
Metagross-Mega
SteelPsychic
SOFT CHECK
View matchup
28.725
53.8%
Standard error 9.30 points
▾
252+ Atk Tough Claws Metagross-Mega Ice Punch vs. 252 HP / 0 Def Garchomp: 532-628 (126.6 - 149.5%) -- guaranteed OHKO
10
Garchomp
DragonGround
SOFT CHECK
View matchup
30.559
48.3%
Standard error 9.04 points
▾
252+ Atk Garchomp Outrage vs. 252 HP / 0 Def Garchomp: 450-530 (107.1 - 126.1%) -- guaranteed OHKO
11
Tornadus-Therian
Flying
SOFT CHECK
View matchup
33.49
44.8%
Standard error 8.59 points
▾
0- SpA Tornadus-Therian Hidden Power Ice vs. 252 HP / 252+ SpD Garchomp: 136-164 (32.3 - 39%) -- 99.3% chance to 3HKO
12
Rotom-Wash
ElectricWater
SOFT CHECK
View matchup
25.517
46.0%
Standard error 9.87 points
▾
252+ SpA Rotom-Wash Hydro Pump vs. 252 HP / 252+ SpD Garchomp: 136-162 (32.3 - 38.5%) -- 98.1% chance to 3HKO
13
Excadrill
GroundSteel
SOFT CHECK
View matchup
151.24
32.1%
Standard error 6.45 points
▾
252+ Atk Mold Breaker Excadrill Earthquake vs. 252 HP / 0 Def Garchomp: 193-228 (45.9 - 54.2%) -- 50.8% chance to 2HKO
14
Ferrothorn
GrassSteel
SOFT CHECK
View matchup
46.425
35.7%
Standard error 9.87 points
▾
252+ Atk Ferrothorn Power Whip vs. 252 HP / 0 Def Garchomp: 180-213 (42.8 - 50.7%) -- 2.3% chance to 2HKO
15
Tyranitar
RockDark
SOFT CHECK
View matchup
30.37
27.8%
Standard error 8.13 points
▾
252+ Atk Tyranitar Ice Punch vs. 252 HP / 0 Def Garchomp: 384-456 (91.4 - 108.5%) -- 50% chance to OHKO
16
Heatran
FireSteel
SOFT CHECK
View matchup
53.783
8.2%
Standard error 5.13 points
▾
252+ SpA Heatran Earth Power vs. 252 HP / 252+ SpD Garchomp: 86-102 (20.4 - 24.2%) -- guaranteed 5HKO
17
Bisharp
DarkSteel
SOFT CHECK
View matchup
20.313
25.7%
Standard error 9.69 points
▾
252+ Atk Black Glasses Bisharp Knock Off (97.5 BP) vs. 252 HP / 0 Def Garchomp: 213-252 (50.7 - 60%) -- guaranteed 2HKO
18
Scizor-Mega
BugSteel
SOFT CHECK
View matchup
22.421
21.7%
Standard error 8.71 points
▾
252+ Atk Technician Scizor-Mega Bug Bite vs. 252 HP / 0 Def Garchomp: 187-222 (44.5 - 52.8%) -- 25% chance to 2HKO
19
Volcanion
FireWater
SOFT CHECK
View matchup
20.384
24.2%
Standard error 9.48 points
▾
252+ SpA Volcanion Steam Eruption vs. 252 HP / 252+ SpD Garchomp: 159-187 (37.8 - 44.5%) -- guaranteed 3HKO
Ranked #5 with 19.78% usage. Sorted by conservative score.