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
Dondozo
Water
DEFENSIVE CHECK
View matchup
285.204
83.4%
Standard error 3.79 points
▾
252+ Atk Zacian-Crowned Wild Charge vs. 252 HP / 252+ Def Unaware Dondozo: 158-186 (31.3 - 36.9%) -- 73.5% chance to 3HKO
02
Skeledirge
FireGhost
DEFENSIVE CHECK
View matchup
378.758
81.4%
Standard error 3.45 points
▾
252+ Atk Zacian-Crowned Crunch vs. 252 HP / 252+ Def Unaware Skeledirge: 154-182 (37.3 - 44.1%) -- guaranteed 3HKO
03
Ditto
Normal
DEFENSIVE CHECK
View matchup
229.976
76.9%
Standard error 4.79 points
▾
+1 252+ Atk Zacian-Crowned Close Combat vs. 252 HP / 252+ Def Ditto: 528-622 (176 - 207.3%) -- guaranteed OHKO
04
Necrozma-Dusk-Mane
PsychicSteel
OFFENSIVE CHECK
View matchup
1,709.066
62.9%
Standard error 2.02 points
▾
0- Atk Necrozma-Dusk-Mane Earthquake vs. 252 HP / 0 Def Zacian-Crowned: 170-202 (43.8 - 52%) -- 11.7% chance to 2HKO
05
Calyrex-Ice
PsychicIce
DEFENSIVE CHECK
View matchup
848.477
65.2%
Standard error 2.83 points
▾
+1 252+ Atk Zacian-Crowned Iron Head vs. 252 HP / 252+ Def Calyrex-Ice: 258-306 (63.8 - 75.7%) -- guaranteed 2HKO
06
Koraidon
FightingDragon
OFFENSIVE CHECK
View matchup
3,019.612
57.2%
Standard error 1.56 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
Arceus-Ground
Ground
DEFENSIVE CHECK
View matchup
470.078
62.3%
Standard error 3.86 points
▾
+1 252+ Atk Zacian-Crowned Play Rough vs. 252 HP / 252+ Def Arceus-Ground: 171-202 (38.5 - 45.4%) -- guaranteed 3HKO
08
Arceus-Fire
Fire
DEFENSIVE CHECK
View matchup
21.192
79.5%
Standard error 8.77 points
▾
+1 252+ Atk Zacian-Crowned Close Combat vs. 252 HP / 252+ Def Arceus-Fire: 153-180 (34.4 - 40.5%) -- guaranteed 3HKO
09
Landorus-Therian
GroundFlying
OFFENSIVE CHECK
View matchup
617.439
56.0%
Standard error 3.44 points
▾
252+ Atk Landorus-Therian Earthquake vs. 252 HP / 0 Def Zacian-Crowned: 344-408 (88.6 - 105.1%) -- 31.3% chance to OHKO
10
Zacian-Crowned
FairySteel
SOFT CHECK
View matchup
1,364.061
49.7%
Standard error 2.34 points
▾
+1 252+ Atk Zacian-Crowned Iron Head vs. 252 HP / 0 Def Zacian-Crowned: 211-250 (54.3 - 64.4%) -- guaranteed 2HKO
11
Arceus-Electric
Electric
DEFENSIVE CHECK
View matchup
284.776
59.0%
Standard error 5.01 points
▾
+1 252+ Atk Zacian-Crowned Play Rough vs. 252 HP / 252+ Def Arceus-Electric: 171-202 (38.5 - 45.4%) -- guaranteed 3HKO
12
Groudon
Ground
DEFENSIVE CHECK
View matchup
326.852
56.5%
Standard error 4.73 points
▾
+1 252+ Atk Zacian-Crowned Play Rough vs. 252 HP / 252+ Def Groudon: 153-181 (37.8 - 44.8%) -- guaranteed 3HKO after Leftovers recovery
13
Chi-Yu
DarkFire
OFFENSIVE CHECK
View matchup
24.248
71.9%
Standard error 9.13 points
▾
252+ SpA Beads of Ruin Chi-Yu Overheat vs. 252 HP / 252+ SpD Zacian-Crowned: 420-494 (108.2 - 127.3%) -- guaranteed OHKO
14
Ho-Oh
FireFlying
SOFT CHECK
View matchup
1,711.401
41.9%
Standard error 2.06 points
▾
252+ Atk Ho-Oh Flare Blitz vs. 252 HP / 0 Def Zacian-Crowned: 384-452 (98.9 - 116.4%) -- 87.5% chance to OHKO
15
Kyogre
Water
SOFT CHECK
View matchup
1,743.153
40.9%
Standard error 2.03 points
▾
252+ SpA Choice Specs Kyogre Water Spout (150 BP) vs. 252 HP / 252+ SpD Zacian-Crowned in Rain: 441-519 (113.6 - 133.7%) -- guaranteed OHKO
16
Arceus
Normal
SOFT CHECK
View matchup
1,152.458
40.6%
Standard error 2.50 points
▾
252+ Atk Arceus Earthquake vs. 252 HP / 0 Def Zacian-Crowned: 202-238 (52 - 61.3%) -- guaranteed 2HKO
17
Lunala
PsychicGhost
SOFT CHECK
View matchup
1,110.774
38.8%
Standard error 2.53 points
▾
252+ SpA Lunala Moongeist Beam vs. 252 HP / 252+ SpD Zacian-Crowned: 123-145 (31.7 - 37.3%) -- 88.4% chance to 3HKO
18
Kingambit
DarkSteel
SOFT CHECK
View matchup
309.757
46.2%
Standard error 4.88 points
▾
252+ Atk Kingambit Iron Head vs. 252 HP / 0 Def Zacian-Crowned: 132-156 (34 - 40.2%) -- guaranteed 3HKO
19
Ursaluna
GroundNormal
SOFT CHECK
View matchup
100.445
53.7%
Standard error 7.03 points
▾
252+ Atk Ursaluna Headlong Rush vs. 252 HP / 0 Def Zacian-Crowned: 404-476 (104.1 - 122.6%) -- guaranteed OHKO
20
Eternatus
PoisonDragon
SOFT CHECK
View matchup
799.731
37.1%
Standard error 2.94 points
▾
252+ SpA Eternatus Fire Blast vs. 252 HP / 252+ SpD Zacian-Crowned: 188-222 (48.4 - 57.2%) -- 91.8% chance to 2HKO
21
Deoxys-Attack
Psychic
SOFT CHECK
View matchup
234.254
41.3%
Standard error 5.55 points
▾
0- Atk Deoxys-Attack Low Kick (120 BP) vs. 252 HP / 0 Def Zacian-Crowned: 115-136 (29.6 - 35%) -- 15.4% chance to 3HKO
22
Arceus-Water
Water
SOFT CHECK
View matchup
355.154
36.7%
Standard error 4.41 points
▾
252+ SpA Splash Plate Arceus-Water Judgment vs. 252 HP / 252+ SpD Zacian-Crowned: 133-157 (34.2 - 40.4%) -- guaranteed 3HKO
23
Rayquaza
DragonFlying
SOFT CHECK
View matchup
124.246
43.1%
Standard error 7.50 points
▾
252+ Atk Rayquaza Earthquake vs. 252 HP / 0 Def Zacian-Crowned: 238-280 (61.3 - 72.1%) -- guaranteed 2HKO
24
Giratina-Origin
GhostDragon
SOFT CHECK
View matchup
472.891
27.0%
Standard error 3.51 points
▾
252+ Atk Griseous Core Giratina-Origin Poltergeist vs. 252 HP / 0 Def Zacian-Crowned: 199-235 (51.2 - 60.5%) -- guaranteed 2HKO
25
Kyurem-Black
DragonIce
SOFT CHECK
View matchup
135.725
42.1%
Standard error 7.32 points
▾
252+ Atk Kyurem-Black Fusion Bolt vs. 252 HP / 0 Def Zacian-Crowned: 130-154 (33.5 - 39.6%) -- guaranteed 3HKO
26
Arceus-Ghost
Ghost
SOFT CHECK
View matchup
198.034
33.2%
Standard error 5.76 points
▾
252+ SpA Spooky Plate Arceus-Ghost Judgment vs. 252 HP / 252+ SpD Zacian-Crowned: 133-157 (34.2 - 40.4%) -- guaranteed 3HKO
27
Regieleki
Electric
SOFT CHECK
View matchup
34.477
43.6%
Standard error 8.44 points
▾
252+ SpA Transistor Regieleki Thunderbolt vs. 252 HP / 252+ SpD Zacian-Crowned: 115-136 (29.6 - 35%) -- 16.5% chance to 3HKO
28
Sableye
DarkGhost
SOFT CHECK
31.217
44.4%
Standard error 8.89 points
29
Palkia
WaterDragon
SOFT CHECK
View matchup
48.821
36.3%
Standard error 6.88 points
▾
252+ SpA Palkia Fire Blast vs. 252 HP / 252+ SpD Zacian-Crowned: 192-228 (49.4 - 58.7%) -- 99.6% chance to 2HKO
30
Zekrom
DragonElectric
SOFT CHECK
View matchup
32.1
42.1%
Standard error 8.72 points
▾
252+ Atk Life Orb Zekrom Bolt Strike vs. 252 HP / 0 Def Zacian-Crowned: 298-352 (76.8 - 90.7%) -- guaranteed 2HKO
Ranked #3 with 44.04% usage. Sorted by conservative score.