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
Gliscor
GroundFlying
DEFENSIVE CHECK
View matchup
171.606
88.6%
Standard error 3.96 points
▾
252+ Atk Groudon Stone Edge vs. 252 HP / 252+ Def Gliscor: 83-98 (23.4 - 27.6%) -- 81.5% chance to 4HKO
02
Kyogre
Water
DEFENSIVE CHECK
View matchup
744.971
79.7%
Standard error 2.52 points
▾
252+ Atk Groudon Precipice Blades vs. 252 HP / 252+ Def Kyogre: 186-219 (46 - 54.2%) -- 48.4% chance to 2HKO
03
Lunala
PsychicGhost
OFFENSIVE CHECK
View matchup
214.68
82.0%
Standard error 4.44 points
▾
252+ SpA Lunala Moongeist Beam vs. 252 HP / 252+ SpD Groudon: 144-171 (35.6 - 42.3%) -- 90.9% chance to 3HKO after Leftovers recovery
04
Arceus-Water
Water
DEFENSIVE CHECK
View matchup
117.185
81.1%
Standard error 6.17 points
▾
252+ Atk Groudon Precipice Blades vs. 252 HP / 252+ Def Arceus-Water: 153-180 (34.4 - 40.5%) -- guaranteed 3HKO
05
Calyrex-Ice
PsychicIce
DEFENSIVE CHECK
View matchup
150.271
75.7%
Standard error 5.99 points
▾
252+ Atk Groudon Stone Edge vs. 252 HP / 252+ Def Calyrex-Ice: 146-172 (36.1 - 42.5%) -- guaranteed 3HKO
06
Arceus-Fairy
Fairy
DEFENSIVE CHECK
View matchup
145.716
74.3%
Standard error 6.13 points
▾
252+ Atk Groudon Precipice Blades vs. 252 HP / 252+ Def Arceus-Fairy: 153-180 (34.4 - 40.5%) -- guaranteed 3HKO
07
Arceus-Ground
Ground
DEFENSIVE CHECK
View matchup
135.14
73.9%
Standard error 6.42 points
▾
252+ Atk Groudon Precipice Blades vs. 252 HP / 252+ Def Arceus-Ground: 153-180 (34.4 - 40.5%) -- guaranteed 3HKO
08
Ursaluna
GroundNormal
OFFENSIVE CHECK
View matchup
24.096
79.5%
Standard error 8.22 points
▾
252+ Atk Ursaluna Headlong Rush vs. 252 HP / 0 Def Groudon: 169-201 (41.8 - 49.7%) -- guaranteed 3HKO after Leftovers recovery
09
Giratina-Origin
GhostDragon
DEFENSIVE CHECK
View matchup
130.321
71.7%
Standard error 6.73 points
▾
252+ Atk Groudon Stone Edge vs. 252 HP / 252+ Def Giratina-Origin: 96-114 (19 - 22.6%) -- possible 5HKO
10
Arceus
Normal
DEFENSIVE CHECK
View matchup
189.474
63.8%
Standard error 5.98 points
▾
252+ Atk Groudon Precipice Blades vs. 252 HP / 252+ Def Arceus: 153-180 (34.4 - 40.5%) -- guaranteed 3HKO
11
Koraidon
FightingDragon
SOFT CHECK
View matchup
599.346
53.8%
Standard error 3.50 points
▾
252+ Atk Orichalcum Pulse Koraidon Flare Blitz vs. 252 HP / 0 Def Groudon in Sun: 221-261 (54.7 - 64.6%) -- guaranteed 2HKO after Leftovers recovery
12
Terapagos
Normal
DEFENSIVE CHECK
View matchup
29.96
68.6%
Standard error 8.48 points
▾
252+ Atk Groudon Precipice Blades vs. 252 HP / 252+ Def Terapagos: 192-226 (50 - 58.8%) -- guaranteed 2HKO
13
Arceus-Ghost
Ghost
DEFENSIVE CHECK
View matchup
24.358
66.1%
Standard error 9.59 points
▾
252+ Atk Groudon Precipice Blades vs. 252 HP / 252+ Def Arceus-Ghost: 153-180 (34.4 - 40.5%) -- guaranteed 3HKO
14
Ho-Oh
FireFlying
SOFT CHECK
View matchup
415.009
41.6%
Standard error 4.15 points
▾
252+ Atk Ho-Oh Flare Blitz vs. 252 HP / 0 Def Groudon in Sun: 241-285 (59.6 - 70.5%) -- guaranteed 2HKO after Leftovers recovery
15
Ribombee
BugFairy
OFFENSIVE CHECK
View matchup
53.162
60.8%
Standard error 9.30 points
▾
252+ SpA Ribombee Moonblast vs. 252 HP / 252+ SpD Groudon: 106-126 (26.2 - 31.1%) -- 9.4% chance to 4HKO after Leftovers recovery
16
Eternatus
PoisonDragon
SOFT CHECK
View matchup
172.372
49.3%
Standard error 6.49 points
▾
252+ SpA Eternatus Fire Blast vs. 252 HP / 252+ SpD Groudon in Sun: 165-195 (40.8 - 48.2%) -- guaranteed 3HKO after Leftovers recovery
17
Zacian-Crowned
FairySteel
SOFT CHECK
View matchup
326.852
41.4%
Standard error 4.70 points
▾
+1 252+ Atk Zacian-Crowned Play Rough vs. 252 HP / 0 Def Groudon: 202-238 (50 - 58.9%) -- 73.4% chance to 2HKO after Leftovers recovery
18
Necrozma-Dusk-Mane
PsychicSteel
SOFT CHECK
View matchup
289.33
40.6%
Standard error 4.95 points
▾
252+ SpA Necrozma-Dusk-Mane Photon Geyser vs. 252 HP / 252+ SpD Groudon: 127-150 (31.4 - 37.1%) -- guaranteed 4HKO after Leftovers recovery
19
Groudon
Ground
SOFT CHECK
View matchup
82.737
47.7%
Standard error 7.65 points
▾
252+ Atk Groudon Precipice Blades vs. 252 HP / 0 Def Groudon: 178-211 (44 - 52.2%) -- guaranteed 3HKO after Leftovers recovery
20
Landorus-Therian
GroundFlying
SOFT CHECK
View matchup
129.465
38.9%
Standard error 7.29 points
▾
252+ Atk Landorus-Therian Earthquake vs. 252 HP / 0 Def Groudon: 145-172 (35.8 - 42.5%) -- 94.5% chance to 3HKO after Leftovers recovery
21
Hatterene
PsychicFairy
SOFT CHECK
View matchup
208.75
28.9%
Standard error 5.26 points
▾
252+ SpA Hatterene Misty Explosion vs. 252 HP / 252+ SpD Groudon: 144-171 (35.6 - 42.3%) -- 90.9% chance to 3HKO after Leftovers recovery
22
Arceus-Electric
Electric
SOFT CHECK
View matchup
69.368
36.3%
Standard error 7.78 points
▾
252+ SpA Arceus-Electric Ice Beam vs. 252 HP / 252+ SpD Groudon: 158-186 (39.1 - 46%) -- guaranteed 3HKO after Leftovers recovery
23
Kingambit
DarkSteel
SOFT CHECK
View matchup
28.615
28.4%
Standard error 8.43 points
▾
252+ Atk Black Glasses Kingambit Kowtow Cleave vs. 252 HP / 0 Def Groudon: 141-166 (34.9 - 41%) -- 65.5% chance to 3HKO after Leftovers recovery
24
Glimmora
RockPoison
SOFT CHECK
View matchup
46.83
33.3%
Standard error 9.74 points
▾
0- SpA Glimmora Dazzling Gleam vs. 252 HP / 252+ SpD Groudon: 51-60 (12.6 - 14.8%)
25
Blissey
Normal
SOFT CHECK
View matchup
47.221
1.8%
Standard error 2.57 points
▾
Blissey Seismic Toss vs. 252 HP Groudon: 100-100 (24.7 - 24.7%) -- guaranteed 6HKO after Leftovers recovery
26
Ting-Lu
DarkGround
SOFT CHECK
View matchup
36.643
14.9%
Standard error 5.88 points
▾
252+ Atk Ting-Lu Earthquake vs. 252 HP / 0 Def Groudon: 120-142 (29.7 - 35.1%) -- guaranteed 4HKO after Leftovers recovery
27
Alomomola
Water
SOFT CHECK
View matchup
51.798
16.3%
Standard error 6.81 points
▾
252+ Atk Alomomola Play Rough vs. 252 HP / 0 Def Groudon: 56-67 (13.8 - 16.5%)
28
Deoxys-Speed
Psychic
SOFT CHECK
View matchup
27.395
15.4%
Standard error 6.89 points
▾
252+ SpA Deoxys-Speed Psycho Boost vs. 252 HP / 252+ SpD Groudon: 156-184 (38.6 - 45.5%) -- guaranteed 3HKO after Leftovers recovery
Ranked #20 with 8.40% usage. Sorted by conservative score.