Ranked by reliability — blends KO rate with how often each Pokémon is matched up.
#
Checker
Encounters
Reliability
KO Rate
01
Dondozo
Water
DEFENSIVE COUNTER
52.705
72.4%
dies 8.66%
▾
252+ Atk Silk Scarf Arceus Double-Edge vs. 252 HP / 252+ Def Dondozo: 160-189 (31.7 - 37.5%) -- 0.1% chance to 3HKO after Leftovers recovery
02
Marshadow
FightingGhost
OFFENSIVE CHECK
383.985
64.0%
dies 4.13%
▾
252+ Atk Marshadow Close Combat vs. 252 HP / 0 Def Arceus: 356-422 (80.1 - 95%) -- guaranteed 2HKO
03
Zacian-Crowned
FairySteel
OFFENSIVE CHECK
331.092
57.8%
dies 4.62%
▾
+1 252+ Atk Zacian-Crowned Close Combat vs. 252 HP / 0 Def Arceus: 408-482 (91.8 - 108.5%) -- 50% chance to OHKO
04
Chien-Pao
DarkIce
OFFENSIVE CHECK
33.12
56.7%
dies 8.61%
▾
252+ Atk Sword of Ruin Chien-Pao Sacred Sword vs. 252 HP / 0 Def Arceus: 232-274 (52.2 - 61.7%) -- guaranteed 2HKO
05
Necrozma-Dusk-Mane
PsychicSteel
SOFT CHECK
222.747
51.4%
dies 5.69%
▾
0- Atk Necrozma-Dusk-Mane Sunsteel Strike vs. 252 HP / 0 Def Arceus: 123-145 (27.7 - 32.6%) -- guaranteed 4HKO
06
Deoxys-Attack
Psychic
SOFT CHECK
55.268
50.0%
dies 9.43%
▾
0- Atk Life Orb Deoxys-Attack Superpower vs. 252 HP / 0 Def Arceus: 291-343 (65.5 - 77.2%) -- guaranteed 2HKO
07
Zygarde
DragonGround
SOFT CHECK
245.447
48.4%
dies 5.43%
▾
252+ Atk Zygarde Outrage vs. 252 HP / 0 Def Arceus: 153-181 (34.4 - 40.7%) -- guaranteed 3HKO
08
95.32
46.8%
dies 7.01%
▾
252+ Atk Silk Scarf Arceus Double-Edge vs. 252 HP / 0 Def Arceus: 210-247 (47.2 - 55.6%) -- 76.2% chance to 2HKO
09
Mewtwo
Psychic
SOFT CHECK
20.751
43.4%
dies 10.88%
▾
252+ SpA Life Orb Mewtwo Psystrike vs. 252 HP / 0 Def Arceus: 227-269 (51.1 - 60.5%) -- guaranteed 2HKO
10
Gholdengo
SteelGhost
SOFT CHECK
26.514
41.5%
dies 9.57%
▾
252+ SpA Gholdengo Make It Rain vs. 252 HP / 252+ SpD Arceus: 139-165 (31.3 - 37.1%) -- 79% chance to 3HKO
11
24.201
37.9%
dies 9.86%
▾
Ditto vs. Arceus: 0-0 (0 - 0%)
12
Yveltal
DarkFlying
SOFT CHECK
350.621
36.6%
dies 4.40%
▾
0- Atk Life Orb Dark Aura Yveltal Knock Off (97.5 BP) vs. 252 HP / 0 Def Arceus: 177-211 (39.8 - 47.5%) -- guaranteed 3HKO
13
Kyogre-Primal
Water
SOFT CHECK
137.874
35.8%
dies 6.99%
▾
252+ SpA Kyogre-Primal Water Spout (150 BP) vs. 252 HP / 252+ SpD Arceus in Heavy Rain: 328-387 (73.8 - 87.1%) -- guaranteed 2HKO
14
Groudon-Primal
GroundFire
SOFT CHECK
411.318
35.4%
dies 4.01%
▾
252+ Atk Groudon-Primal Precipice Blades vs. 252 HP / 0 Def Arceus: 237-279 (53.3 - 62.8%) -- guaranteed 2HKO
15
Arceus-Dark
Dark
SOFT CHECK
100.133
33.5%
dies 8.09%
▾
252+ SpA Dread Plate Arceus-Dark Judgment vs. 252 HP / 252+ SpD Arceus: 129-153 (29 - 34.4%) -- 3.1% chance to 3HKO
16
Eternatus
PoisonDragon
SOFT CHECK
161.202
31.9%
dies 6.24%
▾
252+ SpA Eternatus Draco Meteor vs. 252 HP / 252+ SpD Arceus: 160-190 (36 - 42.7%) -- guaranteed 3HKO
17
Ho-Oh
FireFlying
SOFT CHECK
244.122
31.8%
dies 5.14%
▾
252+ Atk Ho-Oh Brave Bird vs. 252 HP / 0 Def Arceus: 184-217 (41.4 - 48.8%) -- guaranteed 3HKO
18
Giratina-Origin
GhostDragon
SOFT CHECK
152.691
29.2%
dies 6.28%
▾
252+ SpA Griseous Core Giratina-Origin Draco Meteor vs. 252 HP / 252+ SpD Arceus: 169-199 (38 - 44.8%) -- guaranteed 3HKO
19
Lunala
PsychicGhost
SOFT CHECK
34.742
27.6%
dies 7.58%
▾
+1 252+ SpA Lunala Meteor Beam vs. 252 HP / 252+ SpD Arceus: 142-168 (31.9 - 37.8%) -- 93.9% chance to 3HKO
20
Arceus-Ground
Ground
SOFT CHECK
99.343
27.1%
dies 7.69%
▾
252+ Atk Earth Plate Arceus-Ground Earthquake vs. 252 HP / 0 Def Arceus: 174-205 (39.1 - 46.1%) -- guaranteed 3HKO
21
Arceus-Fairy
Fairy
SOFT CHECK
105.72
24.6%
dies 7.18%
▾
252+ SpA Pixie Plate Arceus-Fairy Judgment vs. 252 HP / 252+ SpD Arceus: 129-153 (29 - 34.4%) -- 3.1% chance to 3HKO
22
Alomomola
Water
SOFT CHECK
119.314
17.3%
dies 5.72%
▾
252+ Atk Alomomola Knock Off (97.5 BP) vs. 252 HP / 0 Def Arceus: 69-82 (15.5 - 18.4%) -- possible 6HKO
23
Smeargle
Normal
SOFT CHECK
25.975
10.3%
dies 5.97%
▾
252+ Atk Smeargle Rapid Spin vs. 252 HP / 0 Def Arceus: 31-37 (6.9 - 8.3%)
24
Deoxys-Speed
Psychic
SOFT CHECK
32.473
4.7%
dies 3.71%
▾
252+ SpA Deoxys-Speed Psycho Boost vs. 252 HP / 252+ SpD Arceus: 129-153 (29 - 34.4%) -- 3.1% chance to 3HKO
Ranked #10 with 18.20% usage. Sorted by reliability score.