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
Jirachi
SteelPsychic
DEFENSIVE CHECK
View matchup
24.112
65.4%
Standard error 9.69 points
▾
252+ Atk Tapu Bulu Wood Hammer vs. 252 HP / 252+ Def Jirachi in Grassy Terrain: 116-137 (28.7 - 33.9%) -- possible 5HKO
02
Medicham-Mega
FightingPsychic
OFFENSIVE CHECK
View matchup
24.076
62.0%
Standard error 9.89 points
▾
252+ Atk Pure Power Medicham-Mega Poison Jab vs. 252 HP / 0 Def Tapu Bulu: 564-668 (163.9 - 194.1%) -- guaranteed OHKO
03
Magearna
SteelFairy
SOFT CHECK
View matchup
111.731
45.5%
Standard error 6.53 points
▾
252+ SpA Magearna Fleur Cannon vs. 252 HP / 252+ SpD Tapu Bulu: 174-205 (50.5 - 59.5%) -- 30.5% chance to 2HKO after Leftovers recovery and Grassy Terrain recovery
04
Tornadus-Therian
Flying
SOFT CHECK
View matchup
120.311
42.7%
Standard error 7.55 points
▾
252+ SpA Tornadus-Therian Hurricane vs. 252 HP / 252+ SpD Tapu Bulu: 264-312 (76.7 - 90.6%) -- guaranteed 2HKO after Leftovers recovery and Grassy Terrain recovery
05
Victini
PsychicFire
SOFT CHECK
View matchup
21.15
51.0%
Standard error 10.87 points
▾
252+ Atk Victini V-create vs. 252 HP / 0 Def Tapu Bulu: 476-564 (138.3 - 163.9%) -- guaranteed OHKO
06
Kartana
GrassSteel
SOFT CHECK
View matchup
56.323
44.0%
Standard error 9.24 points
▾
252+ Atk Kartana Smart Strike vs. 252 HP / 0 Def Tapu Bulu: 288-342 (83.7 - 99.4%) -- guaranteed 2HKO after Leftovers recovery and Grassy Terrain recovery
07
Ferrothorn
GrassSteel
SOFT CHECK
View matchup
51.246
42.3%
Standard error 9.72 points
▾
252+ Atk Ferrothorn Power Whip vs. 252 HP / 0 Def Tapu Bulu in Grassy Terrain: 114-135 (33.1 - 39.2%) -- 99.2% chance to 4HKO after Leftovers recovery and Grassy Terrain recovery
08
Toxapex
PoisonWater
SOFT CHECK
View matchup
34.608
35.4%
Standard error 8.13 points
▾
252+ SpA Toxapex Scald vs. 252 HP / 252+ SpD Tapu Bulu: 30-36 (8.7 - 10.4%)
09
Landorus-Therian
GroundFlying
SOFT CHECK
View matchup
192.083
22.8%
Standard error 5.21 points
▾
252+ Atk Landorus-Therian Explosion vs. 252 HP / 0 Def Tapu Bulu: 288-339 (83.7 - 98.5%) -- guaranteed 2HKO after Leftovers recovery and Grassy Terrain recovery
10
Greninja
WaterDark
SOFT CHECK
View matchup
133.641
25.3%
Standard error 6.41 points
▾
0- Atk Greninja Gunk Shot vs. 252 HP / 0 Def Tapu Bulu: 264-312 (76.7 - 90.6%) -- guaranteed 2HKO after Leftovers recovery and Grassy Terrain recovery
11
Tapu Lele
PsychicFairy
SOFT CHECK
View matchup
21.443
40.6%
Standard error 10.60 points
▾
252+ SpA Choice Specs Tapu Lele Psyshock vs. 252 HP / 0 Def Tapu Bulu in Psychic Terrain: 286-337 (83.1 - 97.9%) -- guaranteed 2HKO after Leftovers recovery
12
Tapu Koko
ElectricFairy
SOFT CHECK
View matchup
82.358
23.2%
Standard error 6.40 points
▾
Tapu Koko Nature's Madness vs. 252 HP Tapu Bulu: 172-172 (50 - 50%) -- guaranteed 3HKO after Leftovers recovery
13
Swampert-Mega
WaterGround
SOFT CHECK
View matchup
20.096
40.9%
Standard error 10.97 points
▾
252+ Atk Swampert-Mega Ice Punch vs. 252 HP / 0 Def Tapu Bulu: 178-210 (51.7 - 61%) -- 53.1% chance to 2HKO after Leftovers recovery and Grassy Terrain recovery
14
Scizor-Mega
BugSteel
SOFT CHECK
View matchup
21.741
37.5%
Standard error 10.38 points
▾
252+ Atk Technician Scizor-Mega Bullet Punch vs. 252 HP / 0 Def Tapu Bulu: 212-252 (61.6 - 73.2%) -- guaranteed 2HKO after Leftovers recovery and Grassy Terrain recovery
15
Tapu Fini
WaterFairy
SOFT CHECK
View matchup
94.403
9.1%
Standard error 4.11 points
▾
Tapu Fini Nature's Madness vs. 252 HP Tapu Bulu: 172-172 (50 - 50%) -- guaranteed 3HKO after Leftovers recovery
Ranked #38 with 5.13% usage. Sorted by conservative score.