Ranked by reliability — blends KO rate with how often each Pokémon is matched up.
#
Checker
Encounters
Reliability
KO Rate
01
Kyurem-Black
DragonIce
OFFENSIVE CHECK
25.426
91.9%
dies 5.40%
▾
252+ Atk Kyurem-Black Freeze Shock vs. 252 HP / 0 Def Zapdos: 704-830 (183.3 - 216.1%) -- guaranteed OHKO
02
Tapu Lele
PsychicFairy
OFFENSIVE CHECK
32.037
91.0%
dies 5.06%
▾
252+ SpA Choice Specs Tapu Lele Psyshock vs. 252 HP / 0 Def Zapdos in Psychic Terrain: 370-436 (96.3 - 113.5%) -- 81.3% chance to OHKO
03
Medicham-Mega
FightingPsychic
OFFENSIVE CHECK
50.709
84.2%
dies 7.21%
▾
252+ Atk Pure Power Medicham-Mega Ice Punch vs. 252 HP / 0 Def Zapdos: 342-404 (89 - 105.2%) -- 31.3% chance to OHKO
04
Tyranitar-Mega
RockDark
DEFENSIVE COUNTER
29.664
84.0%
dies 6.74%
▾
252+ SpA Zapdos Thunderbolt vs. 252 HP / 252+ SpD Tyranitar-Mega in Sand: 67-79 (16.5 - 19.5%) -- possible 6HKO
05
Kommo-o
DragonFighting
DEFENSIVE COUNTER
22.358
83.3%
dies 7.88%
▾
252+ SpA Zapdos Hidden Power Ice vs. 252 HP / 252+ SpD Kommo-o: 98-116 (27.6 - 32.7%) -- guaranteed 4HKO
06
Heatran
FireSteel
OFFENSIVE CHECK
60.43
80.9%
dies 6.94%
▾
252+ SpA Heatran Magma Storm vs. 252 HP / 252+ SpD Zapdos: 139-165 (36.1 - 42.9%) -- 91% chance to 2HKO after trapping damage
07
Chansey
Normal
DEFENSIVE COUNTER
42.377
74.6%
dies 8.85%
▾
252+ SpA Zapdos Thunderbolt vs. 252 HP / 252+ SpD Eviolite Chansey: 73-87 (10.3 - 12.3%) -- possible 9HKO
08
Greninja
WaterDark
OFFENSIVE CHECK
103.241
74.2%
dies 7.37%
▾
252+ SpA Choice Specs Greninja Ice Beam vs. 252 HP / 252+ SpD Zapdos: 214-252 (55.7 - 65.6%) -- guaranteed 2HKO
09
Tapu Koko
ElectricFairy
OFFENSIVE CHECK
58.049
64.1%
dies 8.78%
▾
252+ SpA Life Orb Tapu Koko Thunderbolt vs. 252 HP / 252+ SpD Zapdos in Electric Terrain: 196-231 (51 - 60.1%) -- guaranteed 2HKO
10
Swampert-Mega
WaterGround
OFFENSIVE CHECK
65.288
61.6%
dies 8.48%
▾
252+ Atk Swampert-Mega Ice Punch vs. 252 HP / 0 Def Zapdos: 228-270 (59.3 - 70.3%) -- guaranteed 2HKO
11
Toxapex
PoisonWater
SOFT CHECK
201.485
54.6%
dies 5.91%
▾
252+ SpA Toxapex Scald vs. 252 HP / 252+ SpD Zapdos: 64-76 (16.6 - 19.7%) -- guaranteed 6HKO
12
Magearna
SteelFairy
SOFT CHECK
104.586
51.0%
dies 8.45%
▾
252+ SpA Magearna Fleur Cannon vs. 252 HP / 252+ SpD Zapdos: 180-213 (46.8 - 55.4%) -- 72.7% chance to 2HKO
13
Zapdos
ElectricFlying
SOFT CHECK
21.645
45.0%
dies 10.69%
▾
252+ SpA Zapdos Thunderbolt vs. 252 HP / 252+ SpD Zapdos: 121-144 (31.5 - 37.5%) -- 86.8% chance to 3HKO
14
Celesteela
SteelFlying
SOFT CHECK
86.469
38.5%
dies 8.90%
▾
252+ Atk Celesteela Heavy Slam (120 BP) vs. 252 HP / 0 Def Zapdos: 103-122 (26.8 - 31.7%) -- guaranteed 4HKO
15
Gliscor
GroundFlying
SOFT CHECK
131.208
34.4%
dies 7.02%
▾
252+ Atk Gliscor Knock Off (97.5 BP) vs. 252 HP / 0 Def Zapdos: 107-127 (27.8 - 33%) -- guaranteed 4HKO
16
Kartana
GrassSteel
SOFT CHECK
121.812
27.7%
dies 6.94%
▾
252+ Atk Kartana Frustration vs. 252 HP / 0 Def Zapdos: 180-212 (46.8 - 55.2%) -- 69.5% chance to 2HKO
17
Landorus-Therian
GroundFlying
SOFT CHECK
224.794
25.9%
dies 5.03%
▾
252+ Atk Landorus-Therian Explosion vs. 252 HP / 0 Def Zapdos: 371-437 (96.6 - 113.8%) -- 81.3% chance to OHKO
18
Ferrothorn
GrassSteel
SOFT CHECK
130.826
24.2%
dies 6.40%
▾
252+ Atk Ferrothorn Knock Off (97.5 BP) vs. 252 HP / 0 Def Zapdos: 107-126 (27.8 - 32.8%) -- guaranteed 4HKO
19
Excadrill
GroundSteel
SOFT CHECK
80.855
19.2%
dies 7.58%
▾
252+ Atk Excadrill Rock Slide vs. 252 HP / 0 Def Zapdos: 212-250 (55.2 - 65.1%) -- guaranteed 2HKO
20
Tornadus-Therian
Flying
SOFT CHECK
101.367
14.8%
dies 5.98%
▾
252+ SpA Tornadus-Therian Heat Wave vs. 252 HP / 252+ SpD Zapdos: 79-93 (20.5 - 24.2%) -- guaranteed 5HKO
21
Skarmory
SteelFlying
SOFT CHECK
23.516
4.4%
dies 4.25%
▾
252+ Atk Skarmory Brave Bird vs. 252 HP / 0 Def Zapdos: 89-105 (23.1 - 27.3%) -- 59.8% chance to 4HKO
Ranked #21 with 8.19% usage. Sorted by reliability score.