Ranked by reliability — blends KO rate with how often each Pokémon is matched up.
#
Checker
Encounters
Reliability
KO Rate
01
Dondozo
Water
DEFENSIVE COUNTER
173.548
79.1%
dies 4.96%
▾
252+ Atk Calyrex-Ice Seed Bomb vs. 252 HP / 252+ Def Dondozo: 150-178 (29.7 - 35.3%) -- 21.9% chance to 3HKO
02
Arceus-Water
Water
DEFENSIVE COUNTER
295.674
68.3%
dies 4.67%
▾
252+ Atk Calyrex-Ice Seed Bomb vs. 252 HP / 252+ Def Arceus-Water: 146-174 (32.8 - 39.1%) -- 99.8% chance to 3HKO
03
Skeledirge
FireGhost
DEFENSIVE COUNTER
243.538
65.3%
dies 5.23%
▾
252+ Atk Calyrex-Ice High Horsepower vs. 252 HP / 252+ Def Skeledirge: 196-232 (47.5 - 56.3%) -- 83.6% chance to 2HKO
04
Kingambit
DarkSteel
DEFENSIVE COUNTER
263.943
56.3%
dies 5.25%
▾
252+ Atk Calyrex-Ice Close Combat vs. 252 HP / 252+ Def Kingambit: 436-516 (107.9 - 127.7%) -- guaranteed OHKO
05
Calyrex-Ice
PsychicIce
SOFT CHECK
405.187
49.1%
dies 4.29%
▾
252+ Atk Calyrex-Ice Close Combat vs. 252 HP / 0 Def Calyrex-Ice: 121-143 (29.9 - 35.3%) -- 24.6% chance to 3HKO
06
1,079.479
48.3%
dies 2.62%
▾
252+ SpA Choice Specs Kyogre Water Spout (150 BP) vs. 252 HP / 252+ SpD Calyrex-Ice in Rain: 405-477 (100.2 - 118%) -- guaranteed OHKO
07
Rayquaza
DragonFlying
SOFT CHECK
48.936
47.8%
dies 9.95%
▾
252+ Atk Rayquaza Dragon Ascent vs. 252 HP / 0 Def Calyrex-Ice: 169-199 (41.8 - 49.2%) -- guaranteed 3HKO
08
Necrozma-Dusk-Mane
PsychicSteel
SOFT CHECK
737.102
46.3%
dies 3.16%
▾
0- Atk Necrozma-Dusk-Mane Sunsteel Strike vs. 252 HP / 0 Def Calyrex-Ice: 204-240 (50.4 - 59.4%) -- guaranteed 2HKO
09
Lunala
PsychicGhost
SOFT CHECK
607.454
43.4%
dies 3.46%
▾
+1 252+ SpA Lunala Meteor Beam vs. 252 HP / 252+ SpD Calyrex-Ice: 270-318 (66.8 - 78.7%) -- guaranteed 2HKO
10
Koraidon
FightingDragon
SOFT CHECK
1,418.363
42.6%
dies 2.27%
▾
252+ Atk Orichalcum Pulse Koraidon Flare Blitz vs. 252 HP / 0 Def Calyrex-Ice in Sun: 418-492 (103.4 - 121.7%) -- guaranteed OHKO
11
548.722
42.5%
dies 3.62%
▾
252+ Atk Silk Scarf Arceus Double-Edge vs. 252 HP / 0 Def Calyrex-Ice: 171-202 (42.3 - 50%) -- 0.4% chance to 2HKO
12
Giratina-Origin
GhostDragon
SOFT CHECK
232.184
40.6%
dies 5.53%
▾
252+ Atk Griseous Core Giratina-Origin Poltergeist vs. 252 HP / 0 Def Calyrex-Ice: 314-372 (77.7 - 92%) -- guaranteed 2HKO
13
Arceus-Fairy
Fairy
SOFT CHECK
329.236
39.9%
dies 4.64%
▾
252+ SpA Pixie Plate Arceus-Fairy Judgment vs. 252 HP / 252+ SpD Calyrex-Ice: 123-145 (30.4 - 35.8%) -- 45.3% chance to 3HKO
14
106.782
38.8%
dies 7.86%
▾
Ditto vs. Calyrex-Ice: 0-0 (0 - 0%)
15
Deoxys-Attack
Psychic
SOFT CHECK
120.24
38.4%
dies 7.62%
▾
0- Atk Deoxys-Attack Knock Off (97.5 BP) vs. 252 HP / 0 Def Calyrex-Ice: 148-176 (36.6 - 43.5%) -- guaranteed 3HKO
16
Arceus-Ghost
Ghost
SOFT CHECK
122.863
38.3%
dies 7.58%
▾
252+ SpA Spooky Plate Arceus-Ghost Judgment vs. 252 HP / 252+ SpD Calyrex-Ice: 246-290 (60.8 - 71.7%) -- guaranteed 2HKO
17
Zacian-Crowned
FairySteel
SOFT CHECK
783.988
36.8%
dies 2.98%
▾
+1 252+ Atk Zacian-Crowned Iron Head vs. 252 HP / 0 Def Calyrex-Ice: 338-398 (83.6 - 98.5%) -- guaranteed 2HKO
18
Flutter Mane
GhostFairy
SOFT CHECK
52.454
32.4%
dies 9.12%
▾
252+ SpA Choice Specs Flutter Mane Shadow Ball vs. 252 HP / 252+ SpD Calyrex-Ice: 266-314 (65.8 - 77.7%) -- guaranteed 2HKO
19
Arceus-Electric
Electric
SOFT CHECK
31.951
31.3%
dies 8.20%
▾
252+ SpA Zap Plate Arceus-Electric Judgment vs. 252 HP / 252+ SpD Calyrex-Ice: 123-145 (30.4 - 35.8%) -- 45.3% chance to 3HKO
20
Ho-Oh
FireFlying
SOFT CHECK
734.225
28.8%
dies 2.88%
▾
252+ Atk Ho-Oh Flare Blitz vs. 252 HP / 0 Def Calyrex-Ice: 306-360 (75.7 - 89.1%) -- guaranteed 2HKO
21
Eternatus
PoisonDragon
SOFT CHECK
375.77
27.5%
dies 3.98%
▾
+1 252+ SpA Eternatus Meteor Beam vs. 252 HP / 252+ SpD Calyrex-Ice: 280-330 (69.3 - 81.6%) -- guaranteed 2HKO
22
Arceus-Ground
Ground
SOFT CHECK
324.298
25.2%
dies 4.13%
▾
252+ Atk Arceus-Ground Stone Edge vs. 252 HP / 0 Def Calyrex-Ice: 160-190 (39.6 - 47%) -- guaranteed 3HKO
23
Groudon
Ground
SOFT CHECK
133.099
24.3%
dies 6.42%
▾
252+ Atk Groudon Stone Edge vs. 252 HP / 0 Def Calyrex-Ice: 188-222 (46.5 - 54.9%) -- 64.8% chance to 2HKO
24
Terapagos
Normal
SOFT CHECK
125.74
23.4%
dies 6.51%
▾
0- SpA Terapagos Tera Starstorm vs. 252 HP / 252+ SpD Calyrex-Ice: 51-60 (12.6 - 14.8%) -- possible 7HKO
25
Gliscor
GroundFlying
SOFT CHECK
235.368
23.1%
dies 4.51%
▾
252+ Atk Gliscor Knock Off (97.5 BP) vs. 252 HP / 0 Def Calyrex-Ice: 132-156 (32.6 - 38.6%) -- 98.9% chance to 3HKO
26
Alomomola
Water
SOFT CHECK
113.033
19.6%
dies 6.31%
▾
252+ Atk Alomomola Flip Turn vs. 252 HP / 0 Def Calyrex-Ice: 52-63 (12.8 - 15.5%) -- possible 7HKO
27
Kyurem-Black
DragonIce
SOFT CHECK
78.084
18.5%
dies 7.58%
▾
252+ Atk Kyurem-Black Iron Head vs. 252 HP / 0 Def Calyrex-Ice: 166-196 (41 - 48.5%) -- guaranteed 3HKO
28
Glimmora
RockPoison
SOFT CHECK
122.523
14.9%
dies 5.46%
▾
0- SpA Glimmora Power Gem vs. 252 HP / 252+ SpD Calyrex-Ice: 116-140 (28.7 - 34.6%) -- 8.3% chance to 3HKO
29
Deoxys-Speed
Psychic
SOFT CHECK
60.944
11.8%
dies 5.79%
▾
252+ SpA Deoxys-Speed Psycho Boost vs. 252 HP / 252+ SpD Calyrex-Ice: 60-72 (14.8 - 17.8%) -- possible 6HKO
30
Ribombee
BugFairy
SOFT CHECK
168.051
10.8%
dies 4.08%
▾
252+ SpA Ribombee Moonblast vs. 252 HP / 252+ SpD Calyrex-Ice: 84-99 (20.7 - 24.5%) -- guaranteed 5HKO
Ranked #10 with 15.42% usage. Sorted by reliability score.