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
Skeledirge
FireGhost
DEFENSIVE CHECK
View matchup
222.714
83.9%
Standard error 4.24 points
▾
252+ Atk Zacian-Crowned Wild Charge vs. 252 HP / 252+ Def Unaware Skeledirge: 86-102 (20.8 - 24.7%) -- guaranteed 5HKO
02
Calyrex-Shadow
PsychicGhost
OFFENSIVE CHECK
View matchup
705.025
72.4%
Standard error 2.85 points
▾
252+ SpA Calyrex-Shadow Astral Barrage vs. 252 HP / 252+ SpD Zacian-Crowned: 169-199 (43.5 - 51.2%) -- 7.4% chance to 2HKO
03
Ditto
Normal
DEFENSIVE CHECK
View matchup
290.762
74.0%
Standard error 4.38 points
▾
+1 252+ Atk Zacian-Crowned Close Combat vs. 252 HP / 252+ Def Ditto: 528-622 (176 - 207.3%) -- guaranteed OHKO
04
Dondozo
Water
DEFENSIVE CHECK
View matchup
66.064
78.8%
Standard error 7.07 points
▾
252+ Atk Zacian-Crowned Wild Charge vs. 252 HP / 252+ Def Unaware Dondozo: 158-186 (31.3 - 36.9%) -- guaranteed 4HKO after Leftovers recovery
05
Arceus-Ground
Ground
DEFENSIVE CHECK
View matchup
249.982
63.2%
Standard error 5.05 points
▾
+1 252+ Atk Zacian-Crowned Play Rough vs. 252 HP / 252+ Def Arceus-Ground: 171-202 (38.5 - 45.4%) -- guaranteed 3HKO
06
Koraidon
FightingDragon
SOFT CHECK
View matchup
631.264
53.8%
Standard error 3.40 points
▾
252+ Atk Orichalcum Pulse Koraidon Flare Blitz vs. 252 HP / 0 Def Zacian-Crowned in Sun: 524-618 (135 - 159.2%) -- guaranteed OHKO
07
Calyrex-Ice
PsychicIce
DEFENSIVE CHECK
View matchup
115.686
61.5%
Standard error 7.65 points
▾
+1 252+ Atk Zacian-Crowned Iron Head vs. 252 HP / 252+ Def Calyrex-Ice: 258-306 (63.8 - 75.7%) -- guaranteed 2HKO
08
Necrozma-Dusk-Mane
PsychicSteel
OFFENSIVE CHECK
View matchup
88.321
62.8%
Standard error 8.71 points
▾
252+ Atk Necrozma-Dusk-Mane Earthquake vs. 252 HP / 0 Def Zacian-Crowned: 246-290 (63.4 - 74.7%) -- guaranteed 2HKO
09
Zacian-Crowned
FairySteel
SOFT CHECK
View matchup
168.227
49.7%
Standard error 6.42 points
▾
+1 252+ Atk Zacian-Crowned Iron Head vs. 252 HP / 0 Def Zacian-Crowned: 211-250 (54.3 - 64.4%) -- guaranteed 2HKO
10
Ho-Oh
FireFlying
SOFT CHECK
View matchup
455.497
36.4%
Standard error 3.85 points
▾
252+ Atk Ho-Oh Sacred Fire vs. 252 HP / 0 Def Zacian-Crowned: 320-378 (82.4 - 97.4%) -- guaranteed 2HKO
11
Arceus
Normal
SOFT CHECK
View matchup
521.191
34.9%
Standard error 3.54 points
▾
252+ Atk Arceus Earthquake vs. 252 HP / 0 Def Zacian-Crowned: 202-238 (52 - 61.3%) -- guaranteed 2HKO
12
Kyogre
Water
SOFT CHECK
View matchup
133.835
48.5%
Standard error 7.29 points
▾
252+ SpA Kyogre Water Spout (150 BP) vs. 252 HP / 252+ SpD Zacian-Crowned in Rain: 294-346 (75.7 - 89.1%) -- guaranteed 2HKO
13
Miraidon
ElectricDragon
SOFT CHECK
View matchup
565.158
31.9%
Standard error 3.37 points
▾
252+ SpA Hadron Engine Miraidon Overheat vs. 252 HP / 252+ SpD Zacian-Crowned: 280-330 (72.1 - 85%) -- guaranteed 2HKO
14
Iron Treads
GroundSteel
SOFT CHECK
View matchup
131.51
33.1%
Standard error 7.09 points
▾
252+ Atk Iron Treads Earthquake vs. 252 HP / 0 Def Zacian-Crowned: 288-342 (74.2 - 88.1%) -- guaranteed 2HKO
15
Smeargle
Normal
SOFT CHECK
View matchup
194.552
23.4%
Standard error 5.18 points
▾
252+ Atk Smeargle Nuzzle vs. 252 HP / 0 Def Zacian-Crowned: 9-11 (2.3 - 2.8%)
16
Kingambit
DarkSteel
SOFT CHECK
View matchup
101.541
26.0%
Standard error 6.90 points
▾
252+ Atk Kingambit Iron Head vs. 252 HP / 0 Def Zacian-Crowned: 132-156 (34 - 40.2%) -- guaranteed 3HKO
17
Gliscor
GroundFlying
SOFT CHECK
View matchup
133.687
21.9%
Standard error 6.12 points
▾
252+ Atk Gliscor Earthquake vs. 252 HP / 0 Def Zacian-Crowned: 258-306 (66.4 - 78.8%) -- guaranteed 2HKO
18
Ting-Lu
DarkGround
SOFT CHECK
View matchup
201.296
13.0%
Standard error 3.95 points
▾
252+ Atk Ting-Lu Earthquake vs. 252 HP / 0 Def Zacian-Crowned: 284-336 (73.1 - 86.5%) -- guaranteed 2HKO
19
Glimmora
RockPoison
SOFT CHECK
View matchup
202.346
8.0%
Standard error 3.24 points
▾
0- SpA Glimmora Mud Shot vs. 252 HP / 252+ SpD Zacian-Crowned: 60-72 (15.4 - 18.5%) -- possible 6HKO
20
Clodsire
PoisonGround
SOFT CHECK
View matchup
104.811
19.5%
Standard error 6.58 points
▾
252+ Atk Clodsire Earthquake vs. 252 HP / 0 Def Zacian-Crowned: 222-264 (57.2 - 68%) -- guaranteed 2HKO
21
Alomomola
Water
SOFT CHECK
View matchup
151.046
8.1%
Standard error 3.81 points
▾
252+ Atk Alomomola Flip Turn vs. 252 HP / 0 Def Zacian-Crowned: 67-79 (17.2 - 20.3%) -- possible 5HKO
22
Eternatus
PoisonDragon
SOFT CHECK
View matchup
38.718
16.7%
Standard error 6.00 points
▾
252+ SpA Eternatus Fire Blast vs. 252 HP / 252+ SpD Zacian-Crowned: 188-222 (48.4 - 57.2%) -- 91.8% chance to 2HKO
23
Ribombee
BugFairy
SOFT CHECK
View matchup
89.066
11.8%
Standard error 4.83 points
▾
252+ SpA Ribombee Moonblast vs. 252 HP / 252+ SpD Zacian-Crowned: 45-54 (11.5 - 13.9%) -- possible 8HKO
24
Arceus-Fairy
Fairy
SOFT CHECK
View matchup
126.356
11.9%
Standard error 4.86 points
▾
252+ SpA Arceus-Fairy Earth Power vs. 252 HP / 252+ SpD Zacian-Crowned: 134-158 (34.5 - 40.7%) -- guaranteed 3HKO
25
Grimmsnarl
DarkFairy
SOFT CHECK
View matchup
90.272
4.5%
Standard error 3.03 points
▾
252+ Atk Grimmsnarl Play Rough vs. 252 HP / 0 Def Zacian-Crowned: 67-80 (17.2 - 20.6%) -- possible 5HKO
26
Kyurem-Black
DragonIce
SOFT CHECK
View matchup
21.587
32.8%
Standard error 10.10 points
▾
252+ Atk Kyurem-Black Fusion Bolt vs. 252 HP / 0 Def Zacian-Crowned: 130-154 (33.5 - 39.6%) -- guaranteed 3HKO
27
Wo-Chien
DarkGrass
SOFT CHECK
View matchup
26.491
23.7%
Standard error 8.27 points
▾
+1 0- Atk Wo-Chien Foul Play vs. 252 HP / 0 Def Zacian-Crowned: 87-102 (22.4 - 26.2%) -- 15.3% chance to 4HKO
28
Incineroar
FireDark
SOFT CHECK
View matchup
31.889
16.6%
Standard error 6.59 points
▾
252+ Atk Incineroar Drain Punch vs. 252 HP / 0 Def Zacian-Crowned: 73-87 (18.8 - 22.4%) -- possible 5HKO
29
Chien-Pao
DarkIce
SOFT CHECK
View matchup
61.291
16.6%
Standard error 6.69 points
▾
252+ Atk Sword of Ruin Chien-Pao Sacred Sword vs. 252 HP / 0 Def Zacian-Crowned: 121-143 (31.1 - 36.8%) -- 73.6% chance to 3HKO
30
Hatterene
PsychicFairy
SOFT CHECK
View matchup
59.923
7.0%
Standard error 4.66 points
▾
252+ SpA Hatterene Misty Explosion vs. 252 HP / 252+ SpD Zacian-Crowned: 60-72 (15.4 - 18.5%) -- possible 6HKO
Ranked #9 with 15.85% usage. Sorted by conservative score.