Observed target KO or switch rate is upstream p: the fraction of relevant encounters where the target was knocked out or switched out. Standard error is upstream d. The conservative score is p − 4d. These ladder observations do not prove a set-specific counter.
How to read this table
Use encounter count and standard error to judge the sample. Damage estimates below use inferred sets and remain separate from the observed ladder metric.
#
Checker
Encounters
Conservative score
Target KO or switch rate
01
Zacian-Crowned
FairySteel
OFFENSIVE CHECK
View matchup
439.474
87.0%
Standard error 2.71 points
▾
+1 252+ Atk Zacian-Crowned Iron Head vs. 252 HP / 0 Def Ribombee: 726-854 (224 - 263.5%) -- guaranteed OHKO
02
Necrozma-Dusk-Mane
PsychicSteel
OFFENSIVE CHECK
View matchup
274.051
85.1%
Standard error 3.71 points
▾
0- Atk Necrozma-Dusk-Mane Sunsteel Strike vs. 252 HP / 0 Def Ribombee: 434-512 (133.9 - 158%) -- guaranteed OHKO
03
Kyurem-Black
DragonIce
OFFENSIVE CHECK
View matchup
21.883
90.9%
Standard error 6.16 points
▾
252+ Atk Teravolt Kyurem-Black Iron Head vs. 252 HP / 0 Def Ribombee: 354-418 (109.2 - 129%) -- guaranteed OHKO
04
Calyrex-Ice
PsychicIce
DEFENSIVE CHECK
View matchup
185.584
84.0%
Standard error 4.56 points
▾
252+ SpA Ribombee Moonblast vs. 252 HP / 252+ SpD Calyrex-Ice: 84-99 (20.7 - 24.5%) -- guaranteed 5HKO
05
Arceus
Normal
DEFENSIVE CHECK
View matchup
175.34
83.2%
Standard error 4.87 points
▾
252+ SpA Ribombee Moonblast vs. 252 HP / 252+ SpD Arceus: 88-105 (19.8 - 23.6%) -- possible 5HKO
06
Lunala
PsychicGhost
OFFENSIVE CHECK
View matchup
183.418
80.7%
Standard error 5.01 points
▾
+1 252+ SpA Lunala Meteor Beam vs. 252 HP / 252+ SpD Ribombee: 404-476 (124.6 - 146.9%) -- guaranteed OHKO
07
Arceus-Ground
Ground
DEFENSIVE CHECK
View matchup
142.406
78.9%
Standard error 5.71 points
▾
252+ SpA Ribombee Moonblast vs. 252 HP / 252+ SpD Arceus-Ground: 88-105 (19.8 - 23.6%) -- possible 5HKO
08
Ho-Oh
FireFlying
DEFENSIVE CHECK
View matchup
401.579
69.0%
Standard error 3.98 points
▾
252+ SpA Ribombee Moonblast vs. 252 HP / 252+ SpD Ho-Oh: 36-43 (8.6 - 10.3%)
09
Terapagos
Normal
DEFENSIVE CHECK
View matchup
111.234
78.8%
Standard error 6.60 points
▾
252+ SpA Ribombee Moonblast vs. 252 HP / 252+ SpD Terapagos: 109-130 (28.3 - 33.8%) -- 0.9% chance to 3HKO
10
Arceus-Fairy
Fairy
DEFENSIVE CHECK
View matchup
93.421
77.1%
Standard error 7.09 points
▾
252+ SpA Ribombee Moonblast vs. 252 HP / 252+ SpD Arceus-Fairy: 88-105 (19.8 - 23.6%) -- possible 5HKO
11
Kyogre
Water
DEFENSIVE CHECK
View matchup
232.09
68.8%
Standard error 5.24 points
▾
252+ SpA Ribombee Moonblast vs. 252 HP / 252+ SpD Kyogre: 78-93 (19.3 - 23%) -- possible 5HKO
12
Giratina-Origin
GhostDragon
DEFENSIVE CHECK
View matchup
144.376
72.3%
Standard error 6.45 points
▾
252+ SpA Ribombee Moonblast vs. 252 HP / 252+ SpD Giratina-Origin: 200-236 (39.6 - 46.8%) -- guaranteed 3HKO
13
Arceus-Electric
Electric
DEFENSIVE CHECK
View matchup
40.304
71.9%
Standard error 7.08 points
▾
252+ SpA Ribombee Moonblast vs. 252 HP / 252+ SpD Arceus-Electric: 88-105 (19.8 - 23.6%) -- possible 5HKO
14
Eternatus
PoisonDragon
OFFENSIVE CHECK
View matchup
143.256
70.0%
Standard error 6.63 points
▾
+1 252+ SpA Eternatus Meteor Beam vs. 252 HP / 252+ SpD Ribombee: 420-496 (129.6 - 153%) -- guaranteed OHKO
15
Koraidon
FightingDragon
SOFT CHECK
View matchup
567.922
53.0%
Standard error 3.62 points
▾
252+ Atk Orichalcum Pulse Koraidon Flare Blitz vs. 252 HP / 0 Def Ribombee in Sun: 892-1050 (275.3 - 324%) -- guaranteed OHKO
16
Glimmora
RockPoison
OFFENSIVE CHECK
View matchup
145.132
62.6%
Standard error 6.87 points
▾
0- SpA Glimmora Sludge Bomb vs. 252 HP / 252+ SpD Ribombee: 198-234 (61.1 - 72.2%) -- guaranteed 2HKO
17
Blissey
Normal
DEFENSIVE CHECK
View matchup
88.352
67.1%
Standard error 8.55 points
▾
0- Atk Ribombee Pounce vs. 252 HP / 0 Def Blissey: 127-150 (17.7 - 21%) -- possible 5HKO
18
Deoxys-Attack
Psychic
OFFENSIVE CHECK
View matchup
22.254
64.3%
Standard error 10.16 points
▾
252+ SpA Deoxys-Attack Psycho Boost vs. 252 HP / 252+ SpD Ribombee: 289-342 (89.1 - 105.5%) -- 37.5% chance to OHKO
19
Ribombee
BugFairy
SOFT CHECK
View matchup
190.773
47.4%
Standard error 6.21 points
▾
252+ SpA Ribombee Moonblast vs. 252 HP / 252+ SpD Ribombee: 124-147 (38.2 - 45.3%) -- guaranteed 3HKO
20
Arceus-Ghost
Ghost
DEFENSIVE CHECK
View matchup
21.139
64.0%
Standard error 10.44 points
▾
252+ SpA Ribombee Moonblast vs. 252 HP / 252+ SpD Arceus-Ghost: 88-105 (19.8 - 23.6%) -- possible 5HKO
21
Hatterene
PsychicFairy
SOFT CHECK
View matchup
292.186
40.6%
Standard error 4.96 points
▾
252+ SpA Hatterene Misty Explosion vs. 252 HP / 252+ SpD Ribombee: 168-198 (51.8 - 61.1%) -- guaranteed 2HKO
22
Deoxys-Speed
Psychic
SOFT CHECK
View matchup
142.505
43.2%
Standard error 7.14 points
▾
252+ SpA Deoxys-Speed Psycho Boost vs. 252 HP / 252+ SpD Ribombee: 183-216 (56.4 - 66.6%) -- guaranteed 2HKO
23
Groudon
Ground
SOFT CHECK
View matchup
53.162
37.1%
Standard error 9.12 points
▾
252+ Atk Groudon Stone Edge vs. 252 HP / 0 Def Ribombee: 402-474 (124 - 146.2%) -- guaranteed OHKO
24
Landorus-Therian
GroundFlying
SOFT CHECK
View matchup
86.02
34.2%
Standard error 8.81 points
▾
252+ Atk Landorus-Therian Stone Edge vs. 252 HP / 0 Def Ribombee: 392-462 (120.9 - 142.5%) -- guaranteed OHKO
25
Gliscor
GroundFlying
SOFT CHECK
View matchup
102.126
30.2%
Standard error 7.81 points
▾
252+ Atk Gliscor Earthquake vs. 252 HP / 0 Def Ribombee: 109-129 (33.6 - 39.8%) -- guaranteed 3HKO
26
Ting-Lu
DarkGround
SOFT CHECK
View matchup
46.332
24.8%
Standard error 8.83 points
▾
252+ Atk Ting-Lu Earthquake vs. 252 HP / 0 Def Ribombee: 120-142 (37 - 43.8%) -- guaranteed 3HKO
27
Grimmsnarl
DarkFairy
SOFT CHECK
View matchup
49.423
18.4%
Standard error 7.75 points
▾
252+ Atk Grimmsnarl Play Rough vs. 252 HP / 0 Def Ribombee: 231-273 (71.2 - 84.2%) -- guaranteed 2HKO
Ranked #14 with 11.45% usage. Sorted by conservative score.