Ranked by reliability — blends KO rate with how often each Pokémon is matched up.
#
Checker
Encounters
Reliability
KO Rate
01
Arceus-Ghost
Ghost
DEFENSIVE COUNTER
134.478
67.1%
dies 6.91%
▾
02
Flutter Mane
GhostFairy
OFFENSIVE CHECK
40.252
59.1%
dies 7.75%
▾
252+ SpA Normalize Flutter Mane Astral Barrage vs. 252 HP / 252+ SpD Eviolite Chansey: 83-98 (11.7 - 13.9%) -- possible 8HKO
03
Celesteela
SteelFlying
SOFT CHECK
95.55
53.3%
dies 8.68%
▾
252+ Atk Celesteela Beak Blast vs. 252 HP / 0 Def Eviolite Chansey: 514-606 (73 - 86%) -- guaranteed 2HKO
04
Koraidon
FightingDragon
SOFT CHECK
33.508
49.0%
dies 8.64%
▾
252+ Atk Koraidon Combat Torque vs. 252 HP / 0 Def Eviolite Chansey: 1260-1484 (178.9 - 210.7%) -- guaranteed OHKO
05
Dialga-Origin
SteelDragon
SOFT CHECK
27.889
48.3%
dies 9.46%
▾
0- Atk Adamant Crystal Dialga-Origin Dragon Tail vs. 252 HP / 0 Def Eviolite Chansey: 237-280 (33.6 - 39.7%) -- guaranteed 3HKO
06
Giratina
GhostDragon
SOFT CHECK
48.936
46.6%
dies 10.02%
▾
0- Atk Giratina Knock Off (97.5 BP) vs. 252 HP / 0 Def Eviolite Chansey: 214-252 (30.3 - 35.7%) -- 39.9% chance to 3HKO
07
Arceus-Water
Water
SOFT CHECK
21.924
46.1%
dies 10.65%
▾
252+ SpA Arceus-Water Scald vs. 252 HP / 252+ SpD Eviolite Chansey: 64-76 (9 - 10.7%)
08
Kartana
GrassSteel
SOFT CHECK
21.137
44.8%
dies 10.82%
▾
252+ Atk Life Orb Steelworker Kartana Gigaton Hammer vs. 252 HP / 0 Def Eviolite Chansey: 2454-2889 (348.5 - 410.3%) -- guaranteed OHKO
09
Alakazam-Mega
Psychic
SOFT CHECK
21.674
44.6%
dies 10.68%
▾
252+ SpA Alakazam-Mega Psycho Boost vs. 252 HP / 252+ SpD Eviolite Chansey: 147-174 (20.8 - 24.7%) -- guaranteed 5HKO
10
Ting-Lu
DarkGround
SOFT CHECK
65.845
43.9%
dies 8.62%
▾
252+ Atk Ting-Lu Knock Off (97.5 BP) vs. 252 HP / 0 Def Eviolite Chansey: 528-622 (75 - 88.3%) -- guaranteed 2HKO
11
Groudon-Primal
GroundFire
SOFT CHECK
253.91
43.4%
dies 5.36%
▾
252+ Atk Groudon-Primal Precipice Blades vs. 252 HP / 0 Def Eviolite Chansey: 940-1107 (133.5 - 157.2%) -- guaranteed OHKO
12
Eternatus
PoisonDragon
SOFT CHECK
135.46
41.7%
dies 7.28%
▾
Eternatus Final Gambit vs. 252 HP Chansey: 421-421 (59.8 - 59.8%) -- guaranteed 2HKO
13
Blissey
Normal
SOFT CHECK
72.275
41.2%
dies 8.12%
▾
252+ Atk Blissey U-turn vs. 252 HP / 0 Def Eviolite Chansey: 95-112 (13.4 - 15.9%) -- possible 7HKO
14
Kyogre-Primal
Water
SOFT CHECK
60.588
39.6%
dies 8.81%
▾
0- Atk Kyogre-Primal Knock Off (97.5 BP) vs. 252 HP / 0 Def Eviolite Chansey: 304-358 (43.1 - 50.8%) -- 3.9% chance to 2HKO
15
Registeel
Steel
SOFT CHECK
26.523
38.8%
dies 9.46%
▾
252+ Atk Registeel Knock Off (97.5 BP) vs. 252 HP / 0 Def Eviolite Chansey: 275-324 (39 - 46%) -- guaranteed 3HKO
16
Chansey
Normal
SOFT CHECK
155.016
36.7%
dies 6.60%
▾
17
Swampert-Mega
WaterGround
SOFT CHECK
26.298
30.7%
dies 9.00%
▾
252+ Atk Swampert-Mega Precipice Blades vs. 252 HP / 0 Def Eviolite Chansey: 816-961 (115.9 - 136.5%) -- guaranteed OHKO
18
Diancie-Mega
RockFairy
SOFT CHECK
38.127
27.7%
dies 7.25%
▾
252+ Atk Life Orb Pixilate Diancie-Mega Explosion vs. 252 HP / 0 Def Eviolite Chansey: 2785-3279 (395.5 - 465.7%) -- guaranteed OHKO
Ranked #2 with 41.98% usage. Sorted by reliability score.