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
Giratina-Origin
GhostDragon
DEFENSIVE CHECK
View matchup
102.543
96.8%
Standard error 1.73 points
▾
252+ SpA Deoxys-Speed Psycho Boost vs. 252 HP / 252+ SpD Giratina-Origin: 145-172 (28.7 - 34.1%) -- 1.8% chance to 3HKO
02
Lunala
PsychicGhost
OFFENSIVE CHECK
View matchup
118.839
91.7%
Standard error 2.54 points
▾
252+ SpA Lunala Moongeist Beam vs. 252 HP / 252+ SpD Deoxys-Speed: 288-342 (94.7 - 112.5%) -- 68.8% chance to OHKO
03
Zacian-Crowned
FairySteel
OFFENSIVE CHECK
View matchup
172.86
84.3%
Standard error 2.77 points
▾
+1 252+ Atk Zacian-Crowned Crunch vs. 252 HP / 0 Def Deoxys-Speed: 350-412 (115.1 - 135.5%) -- guaranteed OHKO
04
Arceus-Ground
Ground
DEFENSIVE CHECK
View matchup
94.32
86.9%
Standard error 3.48 points
▾
252+ SpA Deoxys-Speed Psycho Boost vs. 252 HP / 252+ SpD Arceus-Ground: 129-153 (29 - 34.4%) -- 3.1% chance to 3HKO
05
Arceus
Normal
DEFENSIVE CHECK
View matchup
91.859
84.6%
Standard error 3.77 points
▾
252+ SpA Deoxys-Speed Psycho Boost vs. 252 HP / 252+ SpD Arceus: 129-153 (29 - 34.4%) -- 3.1% chance to 3HKO
06
Calyrex-Ice
PsychicIce
DEFENSIVE CHECK
View matchup
57.023
86.9%
Standard error 4.47 points
▾
252+ SpA Deoxys-Speed Psycho Boost vs. 252 HP / 252+ SpD Calyrex-Ice: 60-72 (14.8 - 17.8%) -- possible 6HKO
07
Terapagos
Normal
DEFENSIVE CHECK
View matchup
92.523
82.7%
Standard error 3.93 points
▾
252+ SpA Deoxys-Speed Psycho Boost vs. 252 HP / 252+ SpD Terapagos: 162-192 (42.1 - 50%) -- 0.4% chance to 2HKO
08
Kyogre
Water
DEFENSIVE CHECK
View matchup
134.69
72.9%
Standard error 3.83 points
▾
252+ SpA Deoxys-Speed Psycho Boost vs. 252 HP / 252+ SpD Kyogre: 115-136 (28.4 - 33.6%) -- 0.5% chance to 3HKO
09
Necrozma-Dusk-Mane
PsychicSteel
OFFENSIVE CHECK
View matchup
92.007
73.4%
Standard error 4.61 points
▾
0- Atk Necrozma-Dusk-Mane Knock Off (97.5 BP) vs. 252 HP / 0 Def Deoxys-Speed: 204-240 (67.1 - 78.9%) -- guaranteed 2HKO
10
Groudon
Ground
DEFENSIVE CHECK
View matchup
25.014
80.7%
Standard error 7.89 points
▾
252+ SpA Deoxys-Speed Psycho Boost vs. 252 HP / 252+ SpD Groudon: 156-184 (38.6 - 45.5%) -- guaranteed 3HKO after Leftovers recovery
11
Hatterene
PsychicFairy
OFFENSIVE CHECK
View matchup
212.586
59.8%
Standard error 3.36 points
▾
252+ SpA Hatterene Misty Explosion vs. 252 HP / 252+ SpD Deoxys-Speed: 144-171 (47.3 - 56.2%) -- 82.4% chance to 2HKO
12
Ho-Oh
FireFlying
DEFENSIVE CHECK
View matchup
191.651
60.2%
Standard error 3.54 points
▾
252+ SpA Deoxys-Speed Psycho Boost vs. 252 HP / 252+ SpD Ho-Oh: 108-127 (25.9 - 30.5%) -- guaranteed 4HKO
13
Glimmora
RockPoison
SOFT CHECK
View matchup
155.266
53.9%
Standard error 4.00 points
▾
0- SpA Glimmora Sludge Bomb vs. 252 HP / 252+ SpD Deoxys-Speed: 84-100 (27.6 - 32.8%) -- guaranteed 4HKO
14
Arceus-Fairy
Fairy
DEFENSIVE CHECK
View matchup
23.134
72.9%
Standard error 9.24 points
▾
252+ SpA Deoxys-Speed Psycho Boost vs. 252 HP / 252+ SpD Arceus-Fairy: 129-153 (29 - 34.4%) -- 3.1% chance to 3HKO
15
Ribombee
BugFairy
SOFT CHECK
View matchup
148.198
51.1%
Standard error 4.11 points
▾
252+ SpA Ribombee Moonblast vs. 252 HP / 252+ SpD Deoxys-Speed: 106-126 (34.8 - 41.4%) -- guaranteed 3HKO
16
Koraidon
FightingDragon
SOFT CHECK
View matchup
345.457
45.1%
Standard error 2.68 points
▾
252+ Atk Orichalcum Pulse Koraidon Flare Blitz vs. 252 HP / 0 Def Deoxys-Speed in Sun: 323-381 (106.2 - 125.3%) -- guaranteed OHKO
17
Arceus-Water
Water
DEFENSIVE CHECK
View matchup
27.491
69.0%
Standard error 8.82 points
▾
252+ SpA Deoxys-Speed Psycho Boost vs. 252 HP / 252+ SpD Arceus-Water: 129-153 (29 - 34.4%) -- 3.1% chance to 3HKO
18
Arceus-Electric
Electric
DEFENSIVE CHECK
View matchup
48.082
60.2%
Standard error 7.06 points
▾
252+ SpA Deoxys-Speed Psycho Boost vs. 252 HP / 252+ SpD Arceus-Electric: 129-153 (29 - 34.4%) -- 3.1% chance to 3HKO
19
Ting-Lu
DarkGround
DEFENSIVE CHECK
View matchup
26.435
65.2%
Standard error 9.26 points
▾
20
Deoxys-Speed
Psychic
SOFT CHECK
View matchup
67.069
49.8%
Standard error 6.11 points
▾
252+ SpA Deoxys-Speed Psycho Boost vs. 252 HP / 252+ SpD Deoxys-Speed: 78-92 (25.6 - 30.2%) -- guaranteed 4HKO
21
Gliscor
GroundFlying
SOFT CHECK
View matchup
76.591
44.7%
Standard error 5.68 points
▾
252+ Atk Gliscor Knock Off (97.5 BP) vs. 252 HP / 0 Def Deoxys-Speed: 204-242 (67.1 - 79.6%) -- guaranteed 2HKO
22
Grimmsnarl
DarkFairy
SOFT CHECK
View matchup
78.776
36.4%
Standard error 5.42 points
▾
252+ Atk Grimmsnarl Play Rough vs. 252 HP / 0 Def Deoxys-Speed: 168-198 (55.2 - 65.1%) -- guaranteed 2HKO
Ranked #19 with 8.62% usage. Sorted by conservative score.