Ranked by reliability — blends KO rate with how often each Pokémon is matched up.
#
Checker
Encounters
Reliability
KO Rate
01
Diancie-Mega
RockFairy
OFFENSIVE CHECK
136.565
96.5%
dies 2.67%
▾
0- Atk Diancie-Mega Diamond Storm vs. 252 HP / 0 Def Zapdos: 336-396 (87.5 - 103.1%) -- 25% chance to OHKO
02
Tyranitar-Mega
RockDark
DEFENSIVE COUNTER
141.352
91.8%
dies 3.96%
▾
252+ SpA Zapdos Thunderbolt vs. 252 HP / 252+ SpD Tyranitar-Mega in Sand: 67-79 (16.5 - 19.5%) -- possible 6HKO
03
Hoopa-Unbound
PsychicDark
OFFENSIVE CHECK
21.822
89.8%
dies 6.49%
▾
252+ Atk Hoopa-Unbound Hyperspace Fury vs. 252 HP / 0 Def Zapdos: 240-283 (62.5 - 73.6%) -- guaranteed 2HKO
04
Kyurem
DragonIce
OFFENSIVE CHECK
166.875
89.5%
dies 4.07%
▾
252+ Atk Kyurem Icicle Spear (3 hits) vs. 252 HP / 0 Def Zapdos: 312-378 (81.2 - 98.4%) -- guaranteed 2HKO
05
Latios-Mega
DragonPsychic
OFFENSIVE CHECK
26.912
88.9%
dies 6.06%
▾
252+ SpA Latios-Mega Draco Meteor vs. 252 HP / 252+ SpD Zapdos: 211-249 (54.9 - 64.8%) -- guaranteed 2HKO
06
Tyranitar
RockDark
OFFENSIVE CHECK
93.513
85.3%
dies 6.24%
▾
252+ Atk Choice Band Tyranitar Stone Edge vs. 252 HP / 0 Def Zapdos: 630-744 (164 - 193.7%) -- guaranteed OHKO
07
Blissey
Normal
DEFENSIVE COUNTER
41.181
84.7%
dies 5.61%
▾
252+ SpA Zapdos Hurricane vs. 252 HP / 252+ SpD Blissey: 112-133 (15.6 - 18.6%) -- possible 6HKO
08
Heatran
FireSteel
OFFENSIVE CHECK
146.029
84.3%
dies 5.20%
▾
252+ SpA Heatran Eruption (150 BP) vs. 252 HP / 252+ SpD Zapdos: 208-246 (54.1 - 64%) -- guaranteed 2HKO
09
Charizard-Mega-X
FireDragon
OFFENSIVE CHECK
64.774
82.1%
dies 6.73%
▾
252+ Atk Tough Claws Charizard-Mega-X Flare Blitz vs. 252 HP / 0 Def Zapdos: 321-378 (83.5 - 98.4%) -- guaranteed 2HKO
10
Terapagos
Normal
DEFENSIVE COUNTER
160.77
79.6%
dies 5.47%
▾
252+ SpA Zapdos Hurricane vs. 252 HP / 252+ SpD Terapagos: 153-181 (39.8 - 47.1%) -- guaranteed 3HKO
11
Clodsire
PoisonGround
DEFENSIVE COUNTER
186.267
76.6%
dies 5.35%
▾
252+ SpA Zapdos Hurricane vs. 252 HP / 252+ SpD Clodsire: 138-163 (29.7 - 35.1%) -- guaranteed 4HKO after Black Sludge recovery
12
Tapu Lele
PsychicFairy
OFFENSIVE CHECK
160.825
76.6%
dies 5.67%
▾
252+ SpA Tapu Lele Future Sight vs. 252 HP / 252+ SpD Zapdos in Psychic Terrain: 216-255 (56.2 - 66.4%) -- guaranteed 2HKO
13
Charizard-Mega-Y
FireFlying
OFFENSIVE CHECK
103.883
73.8%
dies 7.35%
▾
252+ SpA Charizard-Mega-Y Overheat vs. 252 HP / 252+ SpD Zapdos in Sun: 313-370 (81.5 - 96.3%) -- guaranteed 2HKO
14
Ursaluna
GroundNormal
OFFENSIVE CHECK
136.194
73.4%
dies 6.49%
▾
252+ Atk Ursaluna Ice Punch vs. 252 HP / 0 Def Zapdos: 218-258 (56.7 - 67.1%) -- guaranteed 2HKO
15
Dragonite
DragonFlying
OFFENSIVE CHECK
208.244
71.4%
dies 5.38%
▾
252+ Atk Dragonite Outrage vs. 252 HP / 0 Def Zapdos: 253-298 (65.8 - 77.6%) -- guaranteed 2HKO
16
Raging Bolt
ElectricDragon
OFFENSIVE CHECK
283.998
67.0%
dies 4.81%
▾
252+ SpA Choice Specs Raging Bolt Draco Meteor vs. 252 HP / 252+ SpD Zapdos: 280-331 (72.9 - 86.1%) -- guaranteed 2HKO
17
Garchomp
DragonGround
OFFENSIVE CHECK
232.273
66.6%
dies 5.33%
▾
252+ Atk Garchomp Stone Edge vs. 252 HP / 0 Def Zapdos: 274-324 (71.3 - 84.3%) -- guaranteed 2HKO
18
Iron Valiant
FairyFighting
OFFENSIVE CHECK
137.509
64.0%
dies 6.95%
▾
0- Atk Iron Valiant Ice Punch vs. 252 HP / 0 Def Zapdos: 140-166 (36.4 - 43.2%) -- guaranteed 3HKO
19
Gliscor
GroundFlying
DEFENSIVE COUNTER
565.339
63.9%
dies 3.41%
▾
252+ SpA Zapdos Hidden Power Ice vs. 252 HP / 252+ SpD Gliscor: 244-288 (68.9 - 81.3%) -- guaranteed 2HKO
20
Ting-Lu
DarkGround
DEFENSIVE COUNTER
244.101
61.1%
dies 5.36%
▾
252+ SpA Zapdos Hurricane vs. 252 HP / 252+ SpD Vessel of Ruin Ting-Lu: 120-142 (23.3 - 27.6%) -- possible 5HKO
21
Tapu Koko
ElectricFairy
OFFENSIVE CHECK
118.138
60.3%
dies 7.74%
▾
252+ SpA Choice Specs Tapu Koko Thunderbolt vs. 252 HP / 252+ SpD Zapdos in Electric Terrain: 195-231 (50.7 - 60.1%) -- guaranteed 2HKO
22
Clefable
Fairy
DEFENSIVE COUNTER
61.211
59.3%
dies 8.83%
▾
252+ SpA Zapdos Hurricane vs. 252 HP / 252+ SpD Clefable: 148-175 (37.5 - 44.4%) -- guaranteed 3HKO after Leftovers recovery
23
Hatterene
PsychicFairy
OFFENSIVE CHECK
70.258
59.1%
dies 10.09%
▾
252+ SpA Hatterene Psyshock vs. 252 HP / 0 Def Zapdos: 171-202 (44.5 - 52.6%) -- 22.7% chance to 2HKO
24
Mawile-Mega
SteelFairy
DEFENSIVE COUNTER
48.012
57.9%
dies 10.07%
▾
252+ SpA Zapdos Heat Wave vs. 252 HP / 252+ SpD Mawile-Mega: 166-196 (54.6 - 64.4%) -- guaranteed 2HKO
25
Chansey
Normal
DEFENSIVE COUNTER
79.289
57.9%
dies 9.00%
▾
252+ SpA Zapdos Hurricane vs. 252 HP / 252+ SpD Eviolite Chansey: 90-106 (12.7 - 15%) -- possible 7HKO
26
Zamazenta
Fighting
SOFT CHECK
379.64
53.9%
dies 4.43%
▾
252+ Atk Zamazenta Stone Edge vs. 252 HP / 0 Def Zapdos: 260-306 (67.7 - 79.6%) -- guaranteed 2HKO
27
Ogerpon-Wellspring
GrassWater
SOFT CHECK
256.824
53.9%
dies 5.36%
▾
252+ Atk Wellspring Mask Ogerpon-Wellspring Ivy Cudgel vs. 252 HP / 0 Def Zapdos: 234-276 (60.9 - 71.8%) -- guaranteed 2HKO
28
Swampert-Mega
WaterGround
SOFT CHECK
49.485
53.2%
dies 9.90%
▾
252+ Atk Swampert-Mega Ice Punch vs. 252 HP / 0 Def Zapdos: 228-270 (59.3 - 70.3%) -- guaranteed 2HKO
29
Gholdengo
SteelGhost
SOFT CHECK
389.181
52.4%
dies 4.38%
▾
252+ SpA Gholdengo Shadow Ball vs. 252 HP / 252+ SpD Zapdos: 114-135 (29.6 - 35.1%) -- 15.6% chance to 3HKO
30
Cinderace
Fire
SOFT CHECK
69.751
52.3%
dies 10.30%
▾
252+ Atk Cinderace Pyro Ball vs. 252 HP / 0 Def Zapdos: 229-270 (59.6 - 70.3%) -- guaranteed 2HKO
Ranked #9 with 14.40% usage. Sorted by reliability score.