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
Kyogre
Water
DEFENSIVE CHECK
View matchup
493.068
84.9%
Standard error 2.78 points
▾
252+ Atk Landorus-Therian Earthquake vs. 252 HP / 252+ Def Kyogre: 151-178 (37.3 - 44%) -- guaranteed 3HKO
02
Lunala
PsychicGhost
OFFENSIVE CHECK
View matchup
197.205
87.1%
Standard error 4.09 points
▾
+1 252+ SpA Lunala Meteor Beam vs. 252 HP / 252+ SpD Landorus-Therian: 187-220 (48.9 - 57.5%) -- 96.1% chance to 2HKO
03
Gliscor
GroundFlying
DEFENSIVE CHECK
View matchup
201.138
86.1%
Standard error 4.18 points
▾
252+ Atk Landorus-Therian Stone Edge vs. 252 HP / 252+ Def Gliscor: 80-95 (22.5 - 26.8%) -- 35.7% chance to 4HKO
04
Calyrex-Ice
PsychicIce
DEFENSIVE CHECK
View matchup
230.517
83.4%
Standard error 4.23 points
▾
252+ Atk Landorus-Therian Stone Edge vs. 252 HP / 252+ Def Calyrex-Ice: 140-166 (34.6 - 41%) -- guaranteed 3HKO
05
Ursaluna
GroundNormal
OFFENSIVE CHECK
View matchup
35.156
87.4%
Standard error 5.60 points
▾
252+ Atk Ursaluna Ice Punch vs. 252 HP / 0 Def Landorus-Therian: 416-492 (108.9 - 128.7%) -- guaranteed OHKO
06
Arceus-Fairy
Fairy
DEFENSIVE CHECK
View matchup
154.847
83.8%
Standard error 5.06 points
▾
252+ Atk Landorus-Therian Earthquake vs. 252 HP / 252+ Def Arceus-Fairy: 124-147 (27.9 - 33.1%) -- guaranteed 4HKO
07
Arceus-Water
Water
DEFENSIVE CHECK
View matchup
105.5
85.5%
Standard error 5.90 points
▾
252+ Atk Landorus-Therian Earthquake vs. 252 HP / 252+ Def Arceus-Water: 124-147 (27.9 - 33.1%) -- guaranteed 4HKO
08
Giratina-Origin
GhostDragon
DEFENSIVE CHECK
View matchup
164.707
79.7%
Standard error 5.31 points
▾
252+ Atk Landorus-Therian Crunch vs. 252 HP / 252+ Def Giratina-Origin: 150-178 (29.7 - 35.3%) -- 21.9% chance to 3HKO
09
Arceus
Normal
DEFENSIVE CHECK
View matchup
300.031
72.4%
Standard error 4.44 points
▾
252+ Atk Landorus-Therian Earthquake vs. 252 HP / 252+ Def Arceus: 124-147 (27.9 - 33.1%) -- guaranteed 4HKO
10
Arceus-Ghost
Ghost
DEFENSIVE CHECK
View matchup
25.354
83.4%
Standard error 7.40 points
▾
252+ Atk Landorus-Therian Crunch vs. 252 HP / 252+ Def Arceus-Ghost: 134-158 (30.1 - 35.5%) -- 29.5% chance to 3HKO
11
Deoxys-Attack
Psychic
OFFENSIVE CHECK
View matchup
51.917
80.9%
Standard error 7.68 points
▾
252+ SpA Deoxys-Attack Psycho Boost vs. 252 HP / 252+ SpD Landorus-Therian: 267-315 (69.8 - 82.4%) -- guaranteed 2HKO
12
Arceus-Ground
Ground
DEFENSIVE CHECK
View matchup
163.952
73.5%
Standard error 5.94 points
▾
252+ Atk Landorus-Therian Earthquake vs. 252 HP / 252+ Def Arceus-Ground: 124-147 (27.9 - 33.1%) -- guaranteed 4HKO
13
Koraidon
FightingDragon
OFFENSIVE CHECK
View matchup
1,095.373
57.2%
Standard error 2.58 points
▾
252+ Atk Orichalcum Pulse Koraidon Flare Blitz vs. 252 HP / 0 Def Landorus-Therian in Sun: 323-381 (84.5 - 99.7%) -- guaranteed 2HKO
14
Necrozma-Dusk-Mane
PsychicSteel
OFFENSIVE CHECK
View matchup
431.627
61.9%
Standard error 4.02 points
▾
0- Atk Necrozma-Dusk-Mane Sunsteel Strike vs. 252 HP / 0 Def Landorus-Therian: 157-186 (41 - 48.6%) -- guaranteed 3HKO
15
Deoxys-Speed
Psychic
OFFENSIVE CHECK
View matchup
50.662
74.8%
Standard error 8.49 points
▾
252+ SpA Deoxys-Speed Psycho Boost vs. 252 HP / 252+ SpD Landorus-Therian: 169-199 (44.2 - 52%) -- 16.4% chance to 2HKO
16
Arceus-Electric
Electric
DEFENSIVE CHECK
View matchup
30.887
67.3%
Standard error 8.44 points
▾
252+ Atk Landorus-Therian Earthquake vs. 252 HP / 252+ Def Arceus-Electric: 248-294 (55.8 - 66.2%) -- guaranteed 2HKO
17
Terapagos
Normal
DEFENSIVE CHECK
View matchup
47.685
67.0%
Standard error 9.60 points
▾
252+ Atk Landorus-Therian Earthquake vs. 252 HP / 252+ Def Terapagos: 156-184 (40.6 - 47.9%) -- guaranteed 3HKO
18
Ribombee
BugFairy
OFFENSIVE CHECK
View matchup
86.02
62.1%
Standard error 8.98 points
▾
252+ SpA Ribombee Moonblast vs. 252 HP / 252+ SpD Landorus-Therian: 115-136 (30.1 - 35.6%) -- 32.5% chance to 3HKO
19
Hatterene
PsychicFairy
SOFT CHECK
View matchup
202.221
47.8%
Standard error 5.98 points
▾
252+ SpA Hatterene Misty Explosion vs. 252 HP / 252+ SpD Landorus-Therian: 154-183 (40.3 - 47.9%) -- guaranteed 3HKO
20
Zacian-Crowned
FairySteel
SOFT CHECK
View matchup
617.439
37.3%
Standard error 3.36 points
▾
+1 252+ Atk Zacian-Crowned Play Rough vs. 252 HP / 0 Def Landorus-Therian: 294-346 (76.9 - 90.5%) -- guaranteed 2HKO
21
Eternatus
PoisonDragon
SOFT CHECK
View matchup
154.098
49.8%
Standard error 6.89 points
▾
+1 252+ SpA Eternatus Meteor Beam vs. 252 HP / 252+ SpD Landorus-Therian: 194-229 (50.7 - 59.9%) -- guaranteed 2HKO
22
Groudon
Ground
SOFT CHECK
View matchup
129.465
51.6%
Standard error 7.48 points
▾
252+ Atk Groudon Stone Edge vs. 252 HP / 0 Def Landorus-Therian: 146-172 (38.2 - 45%) -- guaranteed 3HKO
23
Ho-Oh
FireFlying
SOFT CHECK
View matchup
512.097
36.0%
Standard error 3.65 points
▾
252+ Atk Ho-Oh Brave Bird vs. 252 HP / 0 Def Landorus-Therian: 235-277 (61.5 - 72.5%) -- guaranteed 2HKO
24
Ditto
Normal
DEFENSIVE CHECK
View matchup
25.424
59.6%
Standard error 9.73 points
▾
252+ Atk Landorus-Therian Earthquake vs. 252 HP / 252+ Def Ditto: 214-253 (71.3 - 84.3%) -- guaranteed 2HKO
25
Ting-Lu
DarkGround
SOFT CHECK
View matchup
52.072
47.0%
Standard error 6.92 points
▾
252+ Atk Ting-Lu Payback (100 BP) vs. 252 HP / 0 Def Landorus-Therian: 175-207 (45.8 - 54.1%) -- 49.2% chance to 2HKO
26
Landorus-Therian
GroundFlying
SOFT CHECK
View matchup
152.222
41.0%
Standard error 6.73 points
▾
252+ Atk Landorus-Therian Stone Edge vs. 252 HP / 0 Def Landorus-Therian: 142-168 (37.1 - 43.9%) -- guaranteed 3HKO
27
Grimmsnarl
DarkFairy
SOFT CHECK
View matchup
46.414
47.3%
Standard error 10.36 points
▾
252+ Atk Grimmsnarl Play Rough vs. 252 HP / 0 Def Landorus-Therian: 168-198 (43.9 - 51.8%) -- 10.9% chance to 2HKO
28
Kingambit
DarkSteel
SOFT CHECK
View matchup
91.026
40.5%
Standard error 8.80 points
▾
252+ Atk Black Glasses Kingambit Kowtow Cleave vs. 252 HP / 0 Def Landorus-Therian: 205-243 (53.6 - 63.6%) -- guaranteed 2HKO
29
Glimmora
RockPoison
SOFT CHECK
View matchup
72.908
40.4%
Standard error 9.80 points
▾
0- SpA Glimmora Power Gem vs. 252 HP / 252+ SpD Landorus-Therian: 81-96 (21.2 - 25.1%) -- 0.1% chance to 4HKO
30
Clodsire
PoisonGround
SOFT CHECK
View matchup
54.516
2.2%
Standard error 1.98 points
▾
252+ Atk Clodsire Poison Jab vs. 252 HP / 0 Def Landorus-Therian: 54-64 (14.1 - 16.7%) -- possible 6HKO
Ranked #15 with 9.56% usage. Sorted by conservative score.