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
Chansey
Normal
DEFENSIVE CHECK
View matchup
215.347
79.0%
Standard error 4.76 points
▾
0- Atk Greninja Gunk Shot vs. 252 HP / 0 Def Eviolite Chansey: 253-298 (35.9 - 42.3%) -- guaranteed 3HKO
02
Tapu Fini
WaterFairy
DEFENSIVE CHECK
View matchup
326.124
62.0%
Standard error 4.62 points
▾
0- Atk Greninja Gunk Shot vs. 252 HP / 0 Def Tapu Fini: 132-156 (38.3 - 45.3%) -- guaranteed 3HKO after Leftovers recovery
03
Lopunny-Mega
NormalFighting
OFFENSIVE CHECK
View matchup
119.874
68.7%
Standard error 7.28 points
▾
252+ Atk Lopunny-Mega High Jump Kick vs. 252 HP / 0 Def Greninja: 672-792 (193.1 - 227.5%) -- guaranteed OHKO
04
Toxapex
PoisonWater
SOFT CHECK
View matchup
506.698
54.8%
Standard error 3.82 points
▾
252+ SpA Toxapex Scald vs. 252 HP / 252+ SpD Greninja: 37-44 (10.6 - 12.6%) -- possible 8HKO
05
Dragonite
DragonFlying
OFFENSIVE CHECK
View matchup
82.021
71.4%
Standard error 8.52 points
▾
252+ Atk Dragonite Outrage vs. 252 HP / 0 Def Greninja: 306-360 (87.9 - 103.4%) -- 25% chance to OHKO
06
Kommo-o
DragonFighting
DEFENSIVE CHECK
View matchup
70.733
67.9%
Standard error 7.69 points
▾
252+ SpA Choice Specs Greninja Ice Beam vs. 252 HP / 252+ SpD Kommo-o: 192-226 (54.2 - 63.8%) -- guaranteed 2HKO
07
Keldeo
WaterFighting
OFFENSIVE CHECK
View matchup
47.762
72.1%
Standard error 9.17 points
▾
252+ SpA Keldeo Secret Sword vs. 252 HP / 0 Def Greninja: 422-498 (121.2 - 143.1%) -- guaranteed OHKO
08
Alakazam-Mega
Psychic
OFFENSIVE CHECK
View matchup
91.571
68.2%
Standard error 8.40 points
▾
252+ SpA Alakazam-Mega Focus Blast vs. 252 HP / 252+ SpD Greninja: 320-378 (91.9 - 108.6%) -- 50% chance to OHKO
09
Tapu Bulu
GrassFairy
OFFENSIVE CHECK
View matchup
133.641
62.9%
Standard error 7.12 points
▾
252+ Atk Tapu Bulu Wood Hammer vs. 252 HP / 0 Def Greninja in Grassy Terrain: 896-1056 (257.4 - 303.4%) -- guaranteed OHKO
10
Kyurem-Black
DragonIce
OFFENSIVE CHECK
View matchup
161.99
60.5%
Standard error 6.62 points
▾
252+ Atk Kyurem-Black Fusion Bolt vs. 252 HP / 0 Def Greninja: 408-480 (117.2 - 137.9%) -- guaranteed OHKO
11
Magearna
SteelFairy
SOFT CHECK
View matchup
594.573
46.5%
Standard error 3.54 points
▾
252+ SpA Magearna Fleur Cannon vs. 252 HP / 252+ SpD Greninja: 416-492 (119.5 - 141.3%) -- guaranteed OHKO
12
Tangrowth
Grass
SOFT CHECK
View matchup
93.925
52.5%
Standard error 5.15 points
▾
252+ SpA Tangrowth Giga Drain vs. 252 HP / 252+ SpD Greninja: 216-254 (62 - 72.9%) -- guaranteed 2HKO
13
Ferrothorn
GrassSteel
SOFT CHECK
View matchup
340.526
49.3%
Standard error 4.64 points
▾
252+ Atk Ferrothorn Power Whip vs. 252 HP / 0 Def Greninja: 476-564 (136.7 - 162%) -- guaranteed OHKO
14
Greninja
WaterDark
SOFT CHECK
View matchup
481.266
46.2%
Standard error 3.91 points
▾
252+ SpA Choice Specs Greninja Hydro Pump vs. 252 HP / 252+ SpD Greninja: 112-132 (32.1 - 37.9%) -- 95.7% chance to 3HKO
15
Swampert-Mega
WaterGround
SOFT CHECK
View matchup
200.017
53.4%
Standard error 6.06 points
▾
252+ Atk Swampert-Mega Superpower vs. 252 HP / 0 Def Greninja: 442-522 (127 - 150%) -- guaranteed OHKO
16
Gastrodon
WaterGround
DEFENSIVE CHECK
View matchup
99.274
59.6%
Standard error 8.46 points
▾
252+ SpA Choice Specs Greninja Dark Pulse vs. 252 HP / 252+ SpD Gastrodon: 150-177 (35.2 - 41.5%) -- 77.1% chance to 3HKO after Leftovers recovery
17
Tapu Lele
PsychicFairy
SOFT CHECK
View matchup
192.305
49.5%
Standard error 6.19 points
▾
252+ SpA Choice Specs Tapu Lele Moonblast vs. 252 HP / 252+ SpD Greninja: 456-536 (131 - 154%) -- guaranteed OHKO
18
Clefable
Fairy
SOFT CHECK
View matchup
154.698
49.7%
Standard error 6.86 points
▾
252+ SpA Clefable Moonblast vs. 252 HP / 252+ SpD Greninja: 246-290 (70.6 - 83.3%) -- guaranteed 2HKO
19
Tapu Koko
ElectricFairy
SOFT CHECK
View matchup
255.55
43.3%
Standard error 5.31 points
▾
252+ SpA Life Orb Tapu Koko Thunderbolt vs. 252 HP / 252+ SpD Greninja in Electric Terrain: 452-533 (129.8 - 153.1%) -- guaranteed OHKO
20
Serperior
Grass
SOFT CHECK
View matchup
184.118
43.0%
Standard error 6.25 points
▾
252+ SpA Serperior Leaf Storm vs. 252 HP / 252+ SpD Greninja: 288-342 (82.7 - 98.2%) -- guaranteed 2HKO
21
Ditto
Normal
SOFT CHECK
View matchup
67.664
50.0%
Standard error 8.45 points
▾
Ditto vs. Greninja: 0-0 (0 - 0%)
22
Celesteela
SteelFlying
SOFT CHECK
View matchup
98.448
49.7%
Standard error 8.73 points
▾
252+ Atk Celesteela Earthquake vs. 252 HP / 0 Def Greninja: 140-165 (40.2 - 47.4%) -- guaranteed 3HKO
23
Medicham-Mega
FightingPsychic
SOFT CHECK
View matchup
231.498
36.0%
Standard error 5.35 points
▾
252+ Atk Pure Power Medicham-Mega High Jump Kick vs. 252 HP / 0 Def Greninja: 1076-1268 (309.1 - 364.3%) -- guaranteed OHKO
24
Cresselia
Psychic
SOFT CHECK
View matchup
177.576
37.6%
Standard error 6.13 points
▾
252+ SpA Cresselia Ice Beam vs. 252 HP / 252+ SpD Greninja: 33-39 (9.4 - 11.2%) -- possible 9HKO
25
Kartana
GrassSteel
SOFT CHECK
View matchup
267.73
32.9%
Standard error 4.97 points
▾
252+ Atk Kartana Leaf Blade vs. 252 HP / 0 Def Greninja: 576-680 (165.5 - 195.4%) -- guaranteed OHKO
26
Charizard-Mega-Y
FireFlying
SOFT CHECK
View matchup
117.238
41.2%
Standard error 7.68 points
▾
252+ SpA Charizard-Mega-Y Solar Beam vs. 252 HP / 252+ SpD Greninja: 298-352 (85.6 - 101.1%) -- 12.5% chance to OHKO
27
Scizor-Mega
BugSteel
SOFT CHECK
View matchup
79.817
39.5%
Standard error 7.63 points
▾
252+ Atk Scizor-Mega Superpower vs. 252 HP / 0 Def Greninja: 442-522 (127 - 150%) -- guaranteed OHKO
28
Hawlucha
FightingFlying
SOFT CHECK
View matchup
80.972
46.6%
Standard error 9.51 points
▾
252+ Atk Hawlucha High Jump Kick vs. 252 HP / 0 Def Greninja: 510-602 (146.5 - 172.9%) -- guaranteed OHKO
29
Manaphy
Water
SOFT CHECK
View matchup
92.423
43.7%
Standard error 8.84 points
▾
252+ SpA Manaphy Energy Ball vs. 252 HP / 252+ SpD Greninja: 160-190 (45.9 - 54.5%) -- 59% chance to 2HKO
30
Excadrill
GroundSteel
SOFT CHECK
View matchup
176.419
28.7%
Standard error 5.88 points
▾
252+ Atk Excadrill Earthquake vs. 252 HP / 0 Def Greninja: 256-303 (73.5 - 87%) -- guaranteed 2HKO
Ranked #3 with 32.02% usage. Sorted by conservative score.