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
Greninja
WaterDark
OFFENSIVE CHECK
View matchup
112.687
58.1%
Standard error 7.95 points
▾
252+ SpA Choice Specs Greninja Hydro Pump vs. 252 HP / 252+ SpD Victini: 362-428 (89.6 - 105.9%) -- 37.5% chance to OHKO
02
Kartana
GrassSteel
SOFT CHECK
View matchup
31.123
52.3%
Standard error 8.95 points
▾
252+ Atk Kartana Knock Off (97.5 BP) vs. 252 HP / 0 Def Victini: 300-354 (74.2 - 87.6%) -- guaranteed 2HKO
03
Landorus-Therian
GroundFlying
SOFT CHECK
View matchup
206.637
32.9%
Standard error 5.60 points
▾
252+ Atk Landorus-Therian Earthquake vs. 252 HP / 0 Def Victini: 390-458 (96.5 - 113.3%) -- 75% chance to OHKO
04
Excadrill
GroundSteel
SOFT CHECK
View matchup
35.645
39.4%
Standard error 8.19 points
▾
252+ Atk Excadrill Earthquake vs. 252 HP / 0 Def Victini: 372-438 (92 - 108.4%) -- 50% chance to OHKO
05
Heatran
FireSteel
SOFT CHECK
View matchup
35.896
38.4%
Standard error 8.12 points
▾
252+ SpA Heatran Earth Power vs. 252 HP / 252+ SpD Victini: 156-184 (38.6 - 45.5%) -- guaranteed 3HKO
06
Tapu Koko
ElectricFairy
SOFT CHECK
View matchup
99.839
35.8%
Standard error 8.17 points
▾
252+ SpA Life Orb Tapu Koko Thunderbolt vs. 252 HP / 252+ SpD Victini in Electric Terrain: 183-216 (45.2 - 53.4%) -- 34% chance to 2HKO
07
Medicham-Mega
FightingPsychic
SOFT CHECK
View matchup
84.941
36.6%
Standard error 8.92 points
▾
252+ Atk Pure Power Medicham-Mega High Jump Kick vs. 252 HP / 0 Def Victini: 194-228 (48 - 56.4%) -- 87.5% chance to 2HKO
08
Tapu Fini
WaterFairy
SOFT CHECK
View matchup
50.802
38.1%
Standard error 9.56 points
▾
252+ SpA Tapu Fini Surf vs. 252 HP / 252+ SpD Victini: 188-224 (46.5 - 55.4%) -- 75% chance to 2HKO
09
Toxapex
PoisonWater
SOFT CHECK
View matchup
107.363
30.2%
Standard error 7.62 points
▾
252+ SpA Toxapex Scald vs. 252 HP / 252+ SpD Victini: 120-144 (29.7 - 35.6%) -- 25.8% chance to 3HKO
10
Serperior
Grass
SOFT CHECK
View matchup
30.13
26.9%
Standard error 8.08 points
▾
0- Atk Serperior Knock Off (97.5 BP) vs. 252 HP / 0 Def Victini: 100-118 (24.7 - 29.2%) -- 99.9% chance to 4HKO
11
Tornadus-Therian
Flying
SOFT CHECK
View matchup
30.678
25.9%
Standard error 7.91 points
▾
252+ SpA Tornadus-Therian Hurricane vs. 252 HP / 252+ SpD Victini: 127-150 (31.4 - 37.1%) -- 83.4% chance to 3HKO
12
Magearna
SteelFairy
SOFT CHECK
View matchup
139.428
12.3%
Standard error 4.78 points
▾
252+ SpA Magearna Fleur Cannon vs. 252 HP / 252+ SpD Victini: 84-99 (20.7 - 24.5%) -- guaranteed 5HKO
13
Tapu Bulu
GrassFairy
SOFT CHECK
View matchup
21.15
32.4%
Standard error 10.17 points
▾
252+ Atk Tapu Bulu Stone Edge vs. 252 HP / 0 Def Victini: 240-284 (59.4 - 70.2%) -- guaranteed 2HKO after Grassy Terrain recovery
14
Kyurem-Black
DragonIce
SOFT CHECK
View matchup
25.639
25.0%
Standard error 8.55 points
▾
252+ Atk Kyurem-Black Outrage vs. 252 HP / 0 Def Victini: 262-310 (64.8 - 76.7%) -- guaranteed 2HKO
15
Ferrothorn
GrassSteel
SOFT CHECK
View matchup
92.598
14.4%
Standard error 6.06 points
▾
252+ Atk Ferrothorn Knock Off (97.5 BP) vs. 252 HP / 0 Def Victini: 186-220 (46 - 54.4%) -- 55.1% chance to 2HKO
16
Celesteela
SteelFlying
SOFT CHECK
View matchup
22.258
19.7%
Standard error 8.43 points
▾
252+ Atk Celesteela Earthquake vs. 252 HP / 0 Def Victini: 202-238 (50 - 58.9%) -- guaranteed 2HKO
17
Pelipper
WaterFlying
SOFT CHECK
View matchup
20.406
4.8%
Standard error 4.72 points
▾
0- SpA Pelipper Surf vs. 252 HP / 252+ SpD Victini in Rain: 182-216 (45 - 53.4%) -- 32.8% chance to 2HKO
Ranked #21 with 8.71% usage. Sorted by conservative score.