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
Kyurem
DragonIce
OFFENSIVE CHECK
View matchup
83.118
78.7%
Standard error 6.09 points
▾
252+ SpA Kyurem Ice Beam vs. 252 HP / 252+ SpD Ursaluna: 270-318 (58.1 - 68.5%) -- guaranteed 2HKO
02
Iron Valiant
FairyFighting
OFFENSIVE CHECK
View matchup
31.673
79.4%
Standard error 7.19 points
▾
252+ Atk Iron Valiant Close Combat vs. 252 HP / 0 Def Ursaluna: 414-488 (89.2 - 105.1%) -- 31.3% chance to OHKO
03
Ogerpon-Wellspring
GrassWater
OFFENSIVE CHECK
View matchup
131.88
70.8%
Standard error 6.59 points
▾
252+ Atk Wellspring Mask Ogerpon-Wellspring Power Whip vs. 252 HP / 0 Def Ursaluna: 468-552 (100.8 - 118.9%) -- guaranteed OHKO
04
Zamazenta
Fighting
OFFENSIVE CHECK
View matchup
173.892
66.2%
Standard error 6.04 points
▾
252+ Atk Zamazenta Close Combat vs. 252 HP / 0 Def Ursaluna: 390-462 (84 - 99.5%) -- guaranteed 2HKO
05
Urshifu-Rapid-Strike
FightingWater
OFFENSIVE CHECK
View matchup
28.809
68.6%
Standard error 8.64 points
▾
252+ Atk Urshifu-Rapid-Strike Close Combat vs. 252 HP / 0 Def Ursaluna: 414-488 (89.2 - 105.1%) -- 31.3% chance to OHKO
06
Gengar
GhostPoison
OFFENSIVE CHECK
View matchup
30.457
63.9%
Standard error 8.70 points
▾
252+ SpA Gengar Focus Blast vs. 252 HP / 252+ SpD Ursaluna: 238-282 (51.2 - 60.7%) -- guaranteed 2HKO
07
Charizard-Mega-Y
FireFlying
OFFENSIVE CHECK
View matchup
37.363
59.7%
Standard error 8.02 points
▾
252+ SpA Charizard-Mega-Y Overheat vs. 252 HP / 252+ SpD Ursaluna in Sun: 339-400 (73 - 86.2%) -- guaranteed 2HKO
08
Keldeo
WaterFighting
OFFENSIVE CHECK
View matchup
25.007
60.3%
Standard error 9.78 points
▾
252+ SpA Keldeo Hydro Pump vs. 252 HP / 252+ SpD Ursaluna: 326-386 (70.2 - 83.1%) -- guaranteed 2HKO
09
Corviknight
FlyingSteel
SOFT CHECK
View matchup
129.051
48.2%
Standard error 7.50 points
▾
252+ Atk Corviknight Brave Bird vs. 252 HP / 0 Def Ursaluna: 157-186 (33.8 - 40%) -- guaranteed 3HKO
10
Kingambit
DarkSteel
SOFT CHECK
View matchup
129.646
42.7%
Standard error 6.14 points
▾
252+ Atk Kingambit Low Kick (120 BP) vs. 252 HP / 0 Def Ursaluna: 282-334 (60.7 - 71.9%) -- guaranteed 2HKO
11
Dragonite
DragonFlying
SOFT CHECK
View matchup
85.677
48.2%
Standard error 7.57 points
▾
252+ Atk Dragonite Outrage vs. 252 HP / 0 Def Ursaluna: 211-250 (45.4 - 53.8%) -- 43.8% chance to 2HKO
12
Skarmory
SteelFlying
SOFT CHECK
View matchup
28.61
54.8%
Standard error 9.30 points
▾
0 Def Skarmory Body Press vs. 252 HP / 0 Def Ursaluna: 148-176 (31.8 - 37.9%) -- 93.9% chance to 3HKO
13
Great Tusk
GroundFighting
SOFT CHECK
View matchup
101.546
43.5%
Standard error 6.94 points
▾
252+ Atk Great Tusk Close Combat vs. 252 HP / 0 Def Ursaluna: 416-492 (89.6 - 106%) -- 37.5% chance to OHKO
14
Tapu Lele
PsychicFairy
SOFT CHECK
View matchup
46.658
53.7%
Standard error 10.30 points
▾
252+ SpA Tapu Lele Focus Blast vs. 252 HP / 252+ SpD Ursaluna: 238-282 (51.2 - 60.7%) -- guaranteed 2HKO
15
Ursaluna
GroundNormal
SOFT CHECK
View matchup
24.187
49.2%
Standard error 10.17 points
▾
252+ Atk Ursaluna Headlong Rush vs. 252 HP / 0 Def Ursaluna: 219-258 (47.1 - 55.6%) -- 74.2% chance to 2HKO
16
Terapagos
Normal
SOFT CHECK
View matchup
120.591
37.5%
Standard error 7.44 points
▾
0- SpA Terapagos Ice Beam vs. 252 HP / 252+ SpD Ursaluna: 68-82 (14.6 - 17.6%) -- possible 6HKO
17
Gholdengo
SteelGhost
SOFT CHECK
View matchup
238.3
26.5%
Standard error 4.90 points
▾
252+ SpA Gholdengo Focus Blast vs. 252 HP / 252+ SpD Ursaluna: 244-288 (52.5 - 62%) -- guaranteed 2HKO
18
Volcarona
BugFire
SOFT CHECK
View matchup
55
43.0%
Standard error 9.38 points
▾
252+ SpA Volcarona Giga Drain vs. 252 HP / 252+ SpD Ursaluna: 154-182 (33.1 - 39.2%) -- 99.9% chance to 3HKO
19
Lopunny-Mega
NormalFighting
SOFT CHECK
View matchup
21.986
47.8%
Standard error 10.65 points
▾
252+ Atk Lopunny-Mega Close Combat vs. 252 HP / 0 Def Ursaluna: 428-506 (92.2 - 109%) -- 56.3% chance to OHKO
20
Raging Bolt
ElectricDragon
SOFT CHECK
View matchup
114.144
35.2%
Standard error 7.51 points
▾
252+ SpA Choice Specs Raging Bolt Draco Meteor vs. 252 HP / 252+ SpD Ursaluna: 303-357 (65.3 - 76.9%) -- guaranteed 2HKO
21
Garchomp
DragonGround
SOFT CHECK
View matchup
70.001
34.9%
Standard error 8.03 points
▾
252+ Atk Garchomp Outrage vs. 252 HP / 0 Def Ursaluna: 207-244 (44.6 - 52.5%) -- 21.5% chance to 2HKO
22
Gliscor
GroundFlying
SOFT CHECK
View matchup
199.382
20.9%
Standard error 4.90 points
▾
252+ Atk Gliscor Earthquake vs. 252 HP / 0 Def Ursaluna: 139-165 (29.9 - 35.5%) -- 26.7% chance to 3HKO
23
Venusaur-Mega
GrassPoison
SOFT CHECK
View matchup
21.79
43.1%
Standard error 10.61 points
▾
252+ SpA Venusaur-Mega Giga Drain vs. 252 HP / 252+ SpD Ursaluna: 216-254 (46.5 - 54.7%) -- 62.1% chance to 2HKO
24
Melmetal
Steel
SOFT CHECK
View matchup
91.93
25.8%
Standard error 6.43 points
▾
252+ Atk Melmetal Superpower vs. 252 HP / 0 Def Ursaluna: 296-350 (63.7 - 75.4%) -- guaranteed 2HKO
25
Ceruledge
FireGhost
SOFT CHECK
View matchup
20.185
43.8%
Standard error 11.04 points
▾
252+ Atk Ceruledge Close Combat vs. 252 HP / 0 Def Ursaluna: 268-316 (57.7 - 68.1%) -- guaranteed 2HKO
26
Tyranitar-Mega
RockDark
SOFT CHECK
View matchup
24.328
37.6%
Standard error 9.82 points
▾
252+ Atk Tyranitar-Mega Low Kick (120 BP) vs. 252 HP / 0 Def Ursaluna: 328-388 (70.6 - 83.6%) -- guaranteed 2HKO
27
Scizor-Mega
BugSteel
SOFT CHECK
View matchup
85.583
23.3%
Standard error 6.34 points
▾
252+ Atk Scizor-Mega Close Combat vs. 252 HP / 0 Def Ursaluna: 306-362 (65.9 - 78%) -- guaranteed 2HKO
28
Zapdos
ElectricFlying
SOFT CHECK
View matchup
140.545
21.7%
Standard error 5.95 points
▾
252+ SpA Zapdos Hurricane vs. 252 HP / 252+ SpD Ursaluna: 160-189 (34.4 - 40.7%) -- guaranteed 3HKO
29
Iron Treads
GroundSteel
SOFT CHECK
View matchup
85.614
22.9%
Standard error 6.32 points
▾
252+ Atk Iron Treads Ice Spinner vs. 252 HP / 0 Def Ursaluna: 166-196 (35.7 - 42.2%) -- guaranteed 3HKO
30
Landorus-Therian
GroundFlying
SOFT CHECK
View matchup
164.499
17.5%
Standard error 5.06 points
▾
252+ Atk Landorus-Therian Explosion vs. 252 HP / 0 Def Ursaluna: 311-366 (67 - 78.8%) -- guaranteed 2HKO
Ranked #42 with 4.64% usage. Sorted by conservative score.