Ranked by reliability — blends KO rate with how often each Pokémon is matched up.
#
Checker
Encounters
Reliability
KO Rate
01
Muk-Alola
PoisonDark
DEFENSIVE COUNTER
46.372
81.8%
dies 8.00%
▾
252+ SpA Greninja Hydro Pump vs. 252 HP / 252+ SpD Muk-Alola: 121-144 (29.2 - 34.7%) -- 99.9% chance to 4HKO after Black Sludge recovery
02
Flutter Mane
GhostFairy
OFFENSIVE CHECK
69.729
79.8%
dies 6.77%
▾
252+ SpA Choice Specs Flutter Mane Moonblast vs. 252 HP / 252+ SpD Greninja: 468-552 (134.4 - 158.6%) -- guaranteed OHKO
03
Goodra-Hisui
SteelDragon
DEFENSIVE COUNTER
237.354
79.6%
dies 4.38%
▾
252+ SpA Protean Greninja Ice Beam vs. 252 HP / 252+ SpD Goodra-Hisui: 75-88 (20.6 - 24.1%) -- possible 6HKO
04
Raging Bolt
ElectricDragon
OFFENSIVE CHECK
24.888
73.0%
dies 8.90%
▾
252+ SpA Raging Bolt Thunderbolt vs. 252 HP / 252+ SpD Greninja: 300-354 (86.2 - 101.7%) -- 12.5% chance to OHKO
05
Gallade
PsychicFighting
OFFENSIVE CHECK
59.121
69.0%
dies 6.01%
▾
252+ Atk Sharpness Gallade Sacred Sword vs. 252 HP / 0 Def Greninja: 654-770 (187.9 - 221.2%) -- guaranteed OHKO
06
Mimikyu
GhostFairy
DEFENSIVE COUNTER
34.054
57.7%
dies 8.46%
▾
252+ SpA Greninja Hydro Pump vs. 252 HP / 252+ SpD Mimikyu: 118-139 (37.5 - 44.2%) -- guaranteed 3HKO
07
Mamoswine
IceGround
SOFT CHECK
101.714
52.7%
dies 8.49%
▾
252+ Atk Mamoswine Earthquake vs. 252 HP / 0 Def Greninja: 249-294 (71.5 - 84.4%) -- guaranteed 2HKO
08
Samurott-Hisui
WaterDark
SOFT CHECK
46.463
51.4%
dies 10.33%
▾
252+ Atk Sharpness Samurott-Hisui Sacred Sword vs. 252 HP / 0 Def Greninja: 394-464 (113.2 - 133.3%) -- guaranteed OHKO
09
Sableye
DarkGhost
SOFT CHECK
20.696
48.2%
dies 10.98%
▾
Sableye Night Shade vs. 252 HP Greninja: 100-100 (28.7 - 28.7%) -- guaranteed 4HKO
10
Gholdengo
SteelGhost
SOFT CHECK
73.929
47.6%
dies 8.18%
▾
252+ SpA Gholdengo Focus Blast vs. 252 HP / 252+ SpD Greninja: 260-308 (74.7 - 88.5%) -- guaranteed 2HKO
11
Hoopa-Unbound
PsychicDark
SOFT CHECK
20.298
45.4%
dies 11.05%
▾
252+ SpA Choice Specs Hoopa-Unbound Focus Blast vs. 252 HP / 252+ SpD Greninja: 470-554 (135 - 159.1%) -- guaranteed OHKO
12
Greninja
WaterDark
SOFT CHECK
29.997
44.3%
dies 9.07%
▾
0- Atk Protean Greninja U-turn vs. 252 HP / 0 Def Greninja: 182-216 (52.2 - 62%) -- guaranteed 2HKO
13
Articuno
IceFlying
SOFT CHECK
76.527
43.6%
dies 7.95%
▾
252+ SpA Articuno Freeze-Dry vs. 252 HP / 252+ SpD Greninja: 182-216 (52.2 - 62%) -- guaranteed 2HKO
14
Dragapult
DragonGhost
SOFT CHECK
127.984
43.4%
dies 7.41%
▾
252+ Atk Dragapult Dragon Darts (2 hits) vs. 252 HP / 0 Def Greninja: 236-278 (67.8 - 79.8%) -- guaranteed 2HKO
15
Meowscarada
GrassDark
SOFT CHECK
85.932
41.1%
dies 9.15%
▾
252+ Atk Choice Band Meowscarada Flower Trick vs. 252 HP / 0 Def Greninja on a critical hit: 696-822 (200 - 236.2%) -- guaranteed OHKO
16
Archaludon
SteelDragon
SOFT CHECK
160.559
40.9%
dies 6.65%
▾
0 Def Archaludon Body Press vs. 252 HP / 0 Def Greninja: 202-238 (58 - 68.3%) -- guaranteed 2HKO
17
Corviknight
FlyingSteel
SOFT CHECK
146.869
40.8%
dies 6.89%
▾
252+ Atk Corviknight Brave Bird vs. 252 HP / 0 Def Greninja: 228-268 (65.5 - 77%) -- guaranteed 2HKO
18
Dragonite
DragonFlying
SOFT CHECK
78.774
39.2%
dies 9.50%
▾
252+ Atk Dragonite Outrage vs. 252 HP / 0 Def Greninja: 306-360 (87.9 - 103.4%) -- 25% chance to OHKO
19
Toxapex
PoisonWater
SOFT CHECK
108.015
39.1%
dies 8.07%
▾
0- Atk Toxapex Poison Jab vs. 252 HP / 0 Def Greninja: 75-88 (21.5 - 25.2%) -- 0.1% chance to 4HKO
20
Iron Hands
FightingElectric
SOFT CHECK
33.053
36.5%
dies 8.38%
▾
252+ Atk Iron Hands Close Combat vs. 252 HP / 0 Def Greninja: 630-744 (181 - 213.7%) -- guaranteed OHKO
21
Heatran
FireSteel
SOFT CHECK
62.243
36.3%
dies 8.51%
▾
252+ SpA Heatran Earth Power vs. 252 HP / 252+ SpD Greninja: 96-114 (27.5 - 32.7%) -- guaranteed 4HKO
22
Ceruledge
FireGhost
SOFT CHECK
27.147
36.1%
dies 9.22%
▾
252+ Atk Ceruledge Close Combat vs. 252 HP / 0 Def Greninja: 388-458 (111.4 - 131.6%) -- guaranteed OHKO
23
Ogerpon-Hearthflame
GrassFire
SOFT CHECK
21.514
35.2%
dies 10.29%
▾
252+ Atk Hearthflame Mask Ogerpon-Hearthflame Power Whip vs. 252 HP / 0 Def Greninja: 678-798 (194.8 - 229.3%) -- guaranteed OHKO
24
Iron Valiant
FairyFighting
SOFT CHECK
39.899
34.9%
dies 7.54%
▾
252+ Atk Iron Valiant Close Combat vs. 252 HP / 0 Def Greninja: 596-704 (171.2 - 202.2%) -- guaranteed OHKO
25
Clodsire
PoisonGround
SOFT CHECK
48.431
27.9%
dies 9.09%
▾
252+ Atk Clodsire Earthquake vs. 252 HP / 0 Def Greninja: 172-204 (49.4 - 58.6%) -- 98.8% chance to 2HKO
26
Iron Treads
GroundSteel
SOFT CHECK
22.524
27.3%
dies 9.39%
▾
252+ Atk Iron Treads Earthquake vs. 252 HP / 0 Def Greninja: 225-265 (64.6 - 76.1%) -- guaranteed 2HKO
27
Latios
DragonPsychic
SOFT CHECK
45.676
23.4%
dies 8.59%
▾
252+ SpA Expert Belt Latios Thunderbolt vs. 252 HP / 252+ SpD Greninja: 230-274 (66 - 78.7%) -- guaranteed 2HKO
28
Pecharunt
PoisonGhost
SOFT CHECK
41.662
22.5%
dies 6.47%
▾
252+ SpA Pecharunt Malignant Chain vs. 252 HP / 252+ SpD Greninja: 123-145 (35.3 - 41.6%) -- guaranteed 3HKO
29
Urshifu-Rapid-Strike
FightingWater
SOFT CHECK
31.308
19.3%
dies 7.05%
▾
252+ Atk Urshifu-Rapid-Strike Close Combat vs. 252 HP / 0 Def Greninja: 596-704 (171.2 - 202.2%) -- guaranteed OHKO
30
Enamorus
FairyFlying
SOFT CHECK
32.055
18.8%
dies 6.90%
▾
252+ SpA Enamorus Moonblast vs. 252 HP / 252+ SpD Greninja: 312-368 (89.6 - 105.7%) -- 37.5% chance to OHKO
Ranked #3 with 17.01% usage. Sorted by reliability score.