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
Zacian-Crowned
FairySteel
OFFENSIVE CHECK
View matchup
59.923
90.8%
Standard error 5.27 points
▾
+1 252+ Atk Zacian-Crowned Iron Head vs. 252 HP / 0 Def Hatterene: 500-590 (157.2 - 185.5%) -- guaranteed OHKO
02
Necrozma-Dusk-Mane
PsychicSteel
OFFENSIVE CHECK
View matchup
21.086
90.8%
Standard error 6.29 points
▾
252+ Atk Necrozma-Dusk-Mane Sunsteel Strike vs. 252 HP / 0 Def Hatterene: 432-510 (135.8 - 160.3%) -- guaranteed OHKO
03
Calyrex-Shadow
PsychicGhost
OFFENSIVE CHECK
View matchup
331.007
79.0%
Standard error 3.82 points
▾
252+ SpA Calyrex-Shadow Astral Barrage vs. 252 HP / 252+ SpD Hatterene: 362-428 (113.8 - 134.5%) -- guaranteed OHKO
04
Arceus-Ground
Ground
DEFENSIVE CHECK
View matchup
144.841
83.4%
Standard error 5.08 points
▾
252+ SpA Hatterene Misty Explosion vs. 252 HP / 252+ SpD Arceus-Ground: 118-141 (26.5 - 31.7%) -- guaranteed 4HKO
05
Ho-Oh
FireFlying
DEFENSIVE CHECK
View matchup
347.982
76.9%
Standard error 3.87 points
▾
252+ SpA Hatterene Misty Explosion vs. 252 HP / 252+ SpD Ho-Oh: 49-58 (11.7 - 13.9%) -- possible 8HKO
06
Kyogre
Water
DEFENSIVE CHECK
View matchup
25.963
86.7%
Standard error 6.67 points
▾
252+ SpA Hatterene Misty Explosion vs. 252 HP / 252+ SpD Kyogre: 106-126 (26.2 - 31.1%) -- guaranteed 4HKO
07
Arceus
Normal
DEFENSIVE CHECK
View matchup
236.661
78.0%
Standard error 4.60 points
▾
252+ SpA Hatterene Misty Explosion vs. 252 HP / 252+ SpD Arceus: 118-141 (26.5 - 31.7%) -- guaranteed 4HKO
08
Calyrex-Ice
PsychicIce
DEFENSIVE CHECK
View matchup
52.244
85.9%
Standard error 6.75 points
▾
252+ SpA Hatterene Misty Explosion vs. 252 HP / 252+ SpD Calyrex-Ice: 111-132 (27.4 - 32.6%) -- guaranteed 4HKO
09
Skeledirge
FireGhost
DEFENSIVE CHECK
View matchup
37.927
75.6%
Standard error 6.97 points
▾
252+ SpA Hatterene Misty Explosion vs. 252 HP / 252+ SpD Skeledirge: 80-95 (19.4 - 23%) -- possible 5HKO
10
Kingambit
DarkSteel
DEFENSIVE CHECK
View matchup
23.668
77.3%
Standard error 8.61 points
▾
252+ SpA Hatterene Misty Explosion vs. 252 HP / 252+ SpD Kingambit: 150-177 (37.1 - 43.8%) -- guaranteed 3HKO
11
Iron Treads
GroundSteel
DEFENSIVE CHECK
View matchup
94.002
71.6%
Standard error 7.98 points
▾
252+ SpA Hatterene Misty Explosion vs. 252 HP / 252+ SpD Iron Treads: 84-99 (21.8 - 25.7%) -- possible 5HKO
12
Miraidon
ElectricDragon
OFFENSIVE CHECK
View matchup
323.278
56.4%
Standard error 4.75 points
▾
252+ SpA Hadron Engine Miraidon Electro Drift vs. 252 HP / 252+ SpD Hatterene in Electric Terrain: 226-267 (71 - 83.9%) -- guaranteed 2HKO after Leftovers recovery
13
Koraidon
FightingDragon
SOFT CHECK
View matchup
388.159
52.5%
Standard error 4.33 points
▾
252+ Atk Orichalcum Pulse Koraidon Flare Blitz vs. 252 HP / 0 Def Hatterene in Sun: 308-363 (96.8 - 114.1%) -- 81.3% chance to OHKO
14
Incineroar
FireDark
OFFENSIVE CHECK
View matchup
73.312
62.0%
Standard error 9.57 points
▾
252+ Atk Incineroar Fake Out vs. 252 HP / 0 Def Hatterene: 46-55 (14.4 - 17.2%) -- possible 9HKO
15
Ribombee
BugFairy
SOFT CHECK
View matchup
125.532
51.9%
Standard error 7.57 points
▾
252+ SpA Ribombee Moonblast vs. 252 HP / 252+ SpD Hatterene: 97-115 (30.5 - 36.1%) -- guaranteed 4HKO after Leftovers recovery
16
Smeargle
Normal
SOFT CHECK
View matchup
263.027
41.8%
Standard error 5.25 points
▾
252+ Atk Smeargle Nuzzle vs. 252 HP / 0 Def Hatterene: 11-13 (3.4 - 4%)
17
Grimmsnarl
DarkFairy
SOFT CHECK
View matchup
72.91
49.9%
Standard error 8.11 points
▾
252+ Atk Grimmsnarl Play Rough vs. 252 HP / 0 Def Hatterene: 160-189 (50.3 - 59.4%) -- 80.9% chance to 2HKO after Leftovers recovery
18
Ting-Lu
DarkGround
SOFT CHECK
View matchup
170.579
42.0%
Standard error 6.41 points
▾
252+ Atk Ting-Lu Earthquake vs. 252 HP / 0 Def Hatterene: 168-198 (52.8 - 62.2%) -- 99.6% chance to 2HKO after Leftovers recovery
19
Arceus-Fairy
Fairy
SOFT CHECK
View matchup
29.447
49.7%
Standard error 9.21 points
▾
252+ SpA Pixie Plate Arceus-Fairy Judgment vs. 252 HP / 252+ SpD Hatterene: 144-169 (45.2 - 53.1%) -- 0.4% chance to 2HKO after Leftovers recovery
20
Eternatus
PoisonDragon
SOFT CHECK
View matchup
26.45
47.0%
Standard error 9.70 points
▾
252+ SpA Eternatus Sludge Bomb vs. 252 HP / 252+ SpD Hatterene: 248-294 (77.9 - 92.4%) -- guaranteed 2HKO after Leftovers recovery
21
Glimmora
RockPoison
SOFT CHECK
View matchup
219.034
26.2%
Standard error 5.05 points
▾
0- SpA Glimmora Power Gem vs. 252 HP / 252+ SpD Hatterene: 69-82 (21.6 - 25.7%) -- possible 5HKO
22
Gliscor
GroundFlying
SOFT CHECK
View matchup
190.225
26.8%
Standard error 5.47 points
▾
252+ Atk Gliscor Earthquake vs. 252 HP / 0 Def Hatterene: 151-178 (47.4 - 55.9%) -- 25.8% chance to 2HKO after Leftovers recovery
23
Flutter Mane
GhostFairy
SOFT CHECK
View matchup
64.482
37.2%
Standard error 8.23 points
▾
252+ SpA Flutter Mane Shadow Ball vs. 252 HP / 252+ SpD Hatterene: 210-248 (66 - 77.9%) -- guaranteed 2HKO after Leftovers recovery
24
Ditto
Normal
SOFT CHECK
View matchup
91.953
37.0%
Standard error 8.48 points
▾
Ditto vs. Hatterene: 0-0 (0 - 0%)
25
Deoxys-Speed
Psychic
SOFT CHECK
View matchup
51.021
31.4%
Standard error 9.13 points
▾
252+ SpA Deoxys-Speed Psycho Boost vs. 252 HP / 252+ SpD Hatterene: 72-84 (22.6 - 26.4%) -- possible 5HKO
26
Clodsire
PoisonGround
SOFT CHECK
View matchup
106.129
18.1%
Standard error 6.26 points
▾
252+ Atk Clodsire Earthquake vs. 252 HP / 0 Def Hatterene: 130-154 (40.8 - 48.4%) -- guaranteed 3HKO after Leftovers recovery
Ranked #16 with 9.63% usage. Sorted by conservative score.