Art by sonatines
Spreadsheet by RufflesPro
Thank you to all the hand-selected particpants for submitting their VR.
From this thread by xray
Welcome to the official ORAS OU Viability Rankings thread. In this thread, we as a community will rank every single usable Pokemon into "tiers." In this thread, you're encouraged to post your thoughts and opinions on the various Pokemon that are usable in ORAS OU and what tier they should fall under. Posts in this thread will be taken into account when deciding rank changes.
The general idea of the topic is to rank each OU Pokemon under "rankings" that go in descending order. Since this is a general tier list, everything is lumped together. There won't be any segregation between offense & defense threats.
Welcome to the official ORAS OU Viability Rankings thread. In this thread, we as a community will rank every single usable Pokemon into "tiers." In this thread, you're encouraged to post your thoughts and opinions on the various Pokemon that are usable in ORAS OU and what tier they should fall under. Posts in this thread will be taken into account when deciding rank changes.
The general idea of the topic is to rank each OU Pokemon under "rankings" that go in descending order. Since this is a general tier list, everything is lumped together. There won't be any segregation between offense & defense threats.
- EX: Garchomp can be ranked in A tier as an offensive threat, Ferrothorn can be ranked under A as a supportive threat, and Hippowdon can be can also be ranked in B tier as a defensive threat. These are just examples not representative of their future or current ranks.
From this thread by xray
S
The best of the best. Reserved for Pokemon who shape and define the OU metagame and are clear-cut above the rest of the tier. These Pokemon are typically very powerful offensive threats that are difficult to prepare for and/or are phenomenal support and defensive threats that provide significant utility or defensive potential, respectively. Also the home of Pokemon who can easily perform multiple roles effectively, increasing their versatility and unpredictability. If the Pokemon in this rank have any flaws, those flaws are thoroughly mitigated by their substantial strengths.
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A
Reserved for Pokemon who can sweep or wall significant portions of the metagame and can perform well against most play styles, but require some support or have some flaws that prevent them from doing this consistently. Supporting Pokemon in this rank may give opponents free turns or cannot create free turns easily themselves, but they can still do their job most of the time. Pokemon in this rank are also known to define the play styles they fit on or are easy to add on any given team while being able to carry their weight nearly every match.
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B
Reserved for Pokemon who cannot sweep through or wall significant portions of the metagame, but can properly fulfill a given offensive/defensive niche. Support Pokemon in this category have flaws that prevent them from doing their job, are set up bait for dangerous sweepers, or often give too many free turns. Pokemon who are partially outperformed or struggle with taking on the Pokemon in the A or S Rank, but are otherwise dangerous in their own right and aren't difficult to fit on teams, may also fall into this category.
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C
Reserved for Pokemon who can be effective in the right setting, but either have crippling flaws that prevent them from consistently executing their strategy or are entirely eclipsed by a Pokemon in the above ranks. Pokemon in this rank typically require more extensive support, struggle to perform against the Pokemon ranked above, and are difficult to fit on teams.
S
The best of the best. Reserved for Pokemon who shape and define the OU metagame and are clear-cut above the rest of the tier. These Pokemon are typically very powerful offensive threats that are difficult to prepare for and/or are phenomenal support and defensive threats that provide significant utility or defensive potential, respectively. Also the home of Pokemon who can easily perform multiple roles effectively, increasing their versatility and unpredictability. If the Pokemon in this rank have any flaws, those flaws are thoroughly mitigated by their substantial strengths.
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A
Reserved for Pokemon who can sweep or wall significant portions of the metagame and can perform well against most play styles, but require some support or have some flaws that prevent them from doing this consistently. Supporting Pokemon in this rank may give opponents free turns or cannot create free turns easily themselves, but they can still do their job most of the time. Pokemon in this rank are also known to define the play styles they fit on or are easy to add on any given team while being able to carry their weight nearly every match.
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B
Reserved for Pokemon who cannot sweep through or wall significant portions of the metagame, but can properly fulfill a given offensive/defensive niche. Support Pokemon in this category have flaws that prevent them from doing their job, are set up bait for dangerous sweepers, or often give too many free turns. Pokemon who are partially outperformed or struggle with taking on the Pokemon in the A or S Rank, but are otherwise dangerous in their own right and aren't difficult to fit on teams, may also fall into this category.
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C
Reserved for Pokemon who can be effective in the right setting, but either have crippling flaws that prevent them from consistently executing their strategy or are entirely eclipsed by a Pokemon in the above ranks. Pokemon in this rank typically require more extensive support, struggle to perform against the Pokemon ranked above, and are difficult to fit on teams.
Thank you to Alpha1013, Ithi, BluBirD, ACR1, Garay oak, London Beats, Sylvi, Santu, Paprikaflow, MANNAT, Metallica126, lighthouses, RufflesPro, Gondra, Poek, Savouras, and Zaza for submitting a VR and helping with the project.
ORAS OU Viability Ranking (5/3/2025)
S+
1.

S
2.

3.

S-
4.

5.

6.

A+
7.

8.

9.

10.

11.

12.

13.

A
14.

15.

16.

17.

18.

19.

20.

21.

22.

23.

24.

A-
25.

26.

27.

28.

29.

30.

31.

32.

33.

34.

B+
35.

36.

37.

38.

39.

40.

41.

42.

43.

44.

45.

46.

B
47.

48.

49.

50.

51.

52.

53.

54.

55.

56.

57.

58.

59.

60.

61.

B-
62.

63.

64.

65.

66.

67.

68.

69.

70.

71.

C+
72.

73.

74.

75.

76.

77.

C
78.

79.

80.

81.

82.

83.

84.

85.

86.

C-
87.

88.

89.

90.

D
91.

92.

93.

94.

95.

96.

97.

98.

99.

100.

Previous VR Here
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