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
Medicham-Mega
FightingPsychic
OFFENSIVE CHECK
View matchup
34.82
93.8%
Standard error 4.10 points
▾
252+ Atk Pure Power Medicham-Mega Thunder Punch vs. 252 HP / 0 Def Pelipper: 600-708 (185.1 - 218.5%) -- guaranteed OHKO
02
Tapu Lele
PsychicFairy
OFFENSIVE CHECK
View matchup
23.451
93.9%
Standard error 4.95 points
▾
252+ SpA Choice Specs Tapu Lele Thunder vs. 252 HP / 252+ SpD Pelipper: 712-840 (219.7 - 259.2%) -- guaranteed OHKO
03
Greninja
WaterDark
OFFENSIVE CHECK
View matchup
109.241
85.9%
Standard error 5.56 points
▾
252+ SpA Choice Specs Greninja Hydro Pump vs. 252 HP / 252+ SpD Pelipper in Rain: 170-201 (52.4 - 62%) -- guaranteed 2HKO
04
Tapu Fini
WaterFairy
DEFENSIVE CHECK
View matchup
20.533
88.7%
Standard error 7.00 points
▾
0- SpA Pelipper Hurricane vs. 252 HP / 0 SpD Tapu Fini: 82-97 (23.8 - 28.1%) -- possible 5HKO
05
Clefable
Fairy
DEFENSIVE CHECK
View matchup
87.87
83.6%
Standard error 6.65 points
▾
0- SpA Pelipper Surf vs. 252 HP / 0 SpD Clefable in Rain: 138-163 (35 - 41.3%) -- 75% chance to 3HKO after Leftovers recovery
06
Magearna
SteelFairy
OFFENSIVE CHECK
View matchup
143.668
79.8%
Standard error 5.76 points
▾
252+ SpA Magearna Thunderbolt vs. 252 HP / 252+ SpD Pelipper: 388-460 (119.7 - 141.9%) -- guaranteed OHKO
07
Chansey
Normal
DEFENSIVE CHECK
View matchup
51.379
81.5%
Standard error 7.18 points
▾
252+ Atk Pelipper Knock Off (97.5 BP) vs. 252 HP / 252+ Def Eviolite Chansey: 85-101 (12 - 14.3%) -- possible 7HKO
08
Tornadus-Therian
Flying
OFFENSIVE CHECK
View matchup
45.039
82.0%
Standard error 8.00 points
▾
252+ SpA Tornadus-Therian Hurricane vs. 252 HP / 252+ SpD Pelipper: 159-187 (49 - 57.7%) -- 96.9% chance to 2HKO
09
Tapu Koko
ElectricFairy
OFFENSIVE CHECK
View matchup
64.422
78.3%
Standard error 7.16 points
▾
252+ SpA Life Orb Tapu Koko Thunderbolt vs. 252 HP / 252+ SpD Pelipper in Electric Terrain: 920-1081 (283.9 - 333.6%) -- guaranteed OHKO
10
Heatran
FireSteel
OFFENSIVE CHECK
View matchup
112.295
69.2%
Standard error 7.51 points
▾
252+ SpA Heatran Magma Storm vs. 252 HP / 252+ SpD Pelipper in Rain: 40-48 (12.3 - 14.8%) -- 99.8% chance to 4HKO after trapping damage
11
Ferrothorn
GrassSteel
DEFENSIVE CHECK
View matchup
26.292
72.8%
Standard error 8.68 points
▾
0- SpA Pelipper Hurricane vs. 252 HP / 0 SpD Ferrothorn: 90-106 (25.5 - 30.1%) -- 0.2% chance to 4HKO after Leftovers recovery
12
Toxapex
PoisonWater
DEFENSIVE CHECK
View matchup
153.998
60.3%
Standard error 6.82 points
▾
0- SpA Pelipper Hurricane vs. 252 HP / 0 SpD Toxapex: 76-90 (25 - 29.6%) -- guaranteed 5HKO after Black Sludge recovery
13
Landorus-Therian
GroundFlying
OFFENSIVE CHECK
View matchup
153.753
57.8%
Standard error 6.85 points
▾
252+ Atk Landorus-Therian Explosion vs. 252 HP / 0 Def Pelipper: 323-381 (99.6 - 117.5%) -- 93.8% chance to OHKO
14
Kartana
GrassSteel
OFFENSIVE CHECK
View matchup
20.877
63.3%
Standard error 10.55 points
▾
252+ Atk Kartana Giga Impact vs. 252 HP / 0 Def Pelipper: 231-272 (71.2 - 83.9%) -- guaranteed 2HKO
15
Gliscor
GroundFlying
DEFENSIVE CHECK
View matchup
26.622
59.0%
Standard error 9.53 points
▾
0- SpA Pelipper Surf vs. 252 HP / 0 SpD Gliscor in Rain: 320-378 (90.3 - 106.7%) -- 43.8% chance to OHKO
16
Victini
PsychicFire
DEFENSIVE CHECK
View matchup
20.406
60.3%
Standard error 10.83 points
▾
0- SpA Pelipper Surf vs. 252 HP / 0 SpD Victini in Rain: 254-300 (62.8 - 74.2%) -- guaranteed 2HKO
17
Charizard-Mega-Y
FireFlying
SOFT CHECK
View matchup
80.834
52.2%
Standard error 9.51 points
▾
252+ SpA Charizard-Mega-Y Overheat vs. 252 HP / 252+ SpD Pelipper in Sun: 183-216 (56.4 - 66.6%) -- guaranteed 2HKO
18
Scizor-Mega
BugSteel
SOFT CHECK
View matchup
21.182
53.8%
Standard error 10.83 points
▾
252+ Atk Scizor-Mega Frustration vs. 252 HP / 0 Def Pelipper: 136-161 (41.9 - 49.6%) -- guaranteed 3HKO
19
Excadrill
GroundSteel
SOFT CHECK
View matchup
52.978
40.7%
Standard error 9.52 points
▾
252+ Atk Excadrill Rock Slide vs. 252 HP / 0 Def Pelipper: 186-220 (57.4 - 67.9%) -- guaranteed 2HKO
20
Swampert-Mega
WaterGround
SOFT CHECK
View matchup
20.121
35.4%
Standard error 10.66 points
▾
252+ Atk Swampert-Mega Waterfall vs. 252 HP / 0 Def Pelipper in Rain: 120-141 (37 - 43.5%) -- guaranteed 3HKO
21
Skarmory
SteelFlying
SOFT CHECK
View matchup
20.083
34.3%
Standard error 10.59 points
▾
252+ Atk Skarmory Brave Bird vs. 252 HP / 0 Def Pelipper: 156-184 (48.1 - 56.7%) -- 88.7% chance to 2HKO
Ranked #18 with 9.67% usage. Sorted by conservative score.