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
Tyranitar
RockDark
OFFENSIVE CHECK
View matchup
111.006
70.7%
Standard error 4.32 points
▾
252+ Atk Tyranitar Crunch vs. 252 HP / 0 Def Latios: 356-420 (97.8 - 115.3%) -- 81.3% chance to OHKO (guaranteed OHKO after sandstorm damage)
02
Chansey
Normal
DEFENSIVE CHECK
View matchup
20.92
79.5%
Standard error 8.82 points
▾
252+ SpA Choice Specs Latios Psyshock vs. 252 HP / 0 Def Eviolite Chansey: 735-865 (104.4 - 122.8%) -- guaranteed OHKO
03
Ferrothorn
GrassSteel
SOFT CHECK
View matchup
127.246
51.4%
Standard error 4.43 points
▾
252+ Atk Ferrothorn Explosion vs. 252 HP / 0 Def Latios: 288-339 (79.1 - 93.1%) -- guaranteed 2HKO
04
Excadrill
GroundSteel
OFFENSIVE CHECK
View matchup
27.146
59.8%
Standard error 9.41 points
▾
252+ Atk Excadrill Iron Head vs. 252 HP / 0 Def Latios: 178-210 (48.9 - 57.6%) -- 95.7% chance to 2HKO
05
Latios
DragonPsychic
SOFT CHECK
View matchup
81.904
42.8%
Standard error 5.47 points
▾
252+ SpA Choice Specs Latios Draco Meteor vs. 252 HP / 252+ SpD Latios: 510-600 (140.1 - 164.8%) -- guaranteed OHKO
06
Jirachi
SteelPsychic
SOFT CHECK
View matchup
121.529
34.1%
Standard error 4.30 points
▾
252+ Atk Jirachi Ice Punch vs. 252 HP / 0 Def Latios: 180-214 (49.4 - 58.7%) -- 99.6% chance to 2HKO
07
Alakazam
Psychic
SOFT CHECK
View matchup
54.624
43.2%
Standard error 6.70 points
▾
252+ SpA Alakazam Shadow Ball vs. 252 HP / 252+ SpD Latios: 134-158 (36.8 - 43.4%) -- guaranteed 3HKO
08
Reuniclus
Psychic
SOFT CHECK
View matchup
43.799
41.2%
Standard error 7.44 points
▾
252+ SpA Reuniclus Signal Beam vs. 252 HP / 252+ SpD Latios: 118-140 (32.4 - 38.4%) -- 98.1% chance to 3HKO
09
Keldeo
WaterFighting
SOFT CHECK
View matchup
156.52
22.4%
Standard error 3.33 points
▾
252+ SpA Choice Specs Keldeo Hidden Power Ghost vs. 252 HP / 252+ SpD Latios: 170-200 (46.7 - 54.9%) -- 69.5% chance to 2HKO
10
Politoed
Water
SOFT CHECK
View matchup
81.817
25.2%
Standard error 4.80 points
▾
252+ SpA Politoed Ice Beam vs. 252 HP / 252+ SpD Latios: 120-142 (32.9 - 39%) -- 99.8% chance to 3HKO
11
Heatran
FireSteel
SOFT CHECK
View matchup
21.018
46.8%
Standard error 10.88 points
▾
252+ SpA Heatran Magma Storm vs. 252 HP / 252+ SpD Latios: 72-86 (19.7 - 23.6%) -- guaranteed 4HKO after trapping damage
12
Starmie
WaterPsychic
SOFT CHECK
View matchup
21.099
44.5%
Standard error 10.82 points
▾
0- SpA Starmie Ice Beam vs. 252 HP / 252+ SpD Latios: 84-100 (23 - 27.4%) -- 69.7% chance to 4HKO
13
Thundurus-Therian
ElectricFlying
SOFT CHECK
View matchup
65.324
19.4%
Standard error 4.89 points
▾
252+ SpA Thundurus-Therian Hidden Power Ice vs. 252 HP / 252+ SpD Latios: 124-146 (34 - 40.1%) -- guaranteed 3HKO
14
Landorus-Therian
GroundFlying
SOFT CHECK
View matchup
59.461
14.2%
Standard error 4.52 points
▾
252+ Atk Landorus-Therian Explosion vs. 252 HP / 0 Def Latios: 390-459 (107.1 - 126%) -- guaranteed OHKO
15
Skarmory
SteelFlying
SOFT CHECK
View matchup
32.559
27.3%
Standard error 7.80 points
▾
252+ Atk Skarmory Brave Bird vs. 252 HP / 0 Def Latios: 187-222 (51.3 - 60.9%) -- guaranteed 2HKO
16
Garchomp
DragonGround
SOFT CHECK
View matchup
45.736
15.1%
Standard error 5.29 points
▾
252+ Atk Garchomp Outrage vs. 252 HP / 0 Def Latios: 518-612 (142.3 - 168.1%) -- guaranteed OHKO
17
Rotom-Wash
ElectricWater
SOFT CHECK
View matchup
47.697
9.3%
Standard error 4.21 points
▾
252+ SpA Rotom-Wash Hidden Power Ice vs. 252 HP / 252+ SpD Latios: 98-116 (26.9 - 31.8%) -- guaranteed 4HKO
18
Gliscor
GroundFlying
SOFT CHECK
View matchup
26.859
21.8%
Standard error 7.96 points
▾
252+ Atk Gliscor U-turn vs. 252 HP / 0 Def Latios: 164-194 (45 - 53.2%) -- 35.5% chance to 2HKO
Ranked #1 with 40.51% usage. Sorted by conservative score.