Notes on Smogon power creep

RB OU:

1. Alakazam
2. Chansey
3. Cloyster
4. Exeggutor
5. Gengar
6. Golem
7. Jolteon
8. Jynx
9. Lapras
10. Slowbro
11. Snorlax
12. Starmie
13. Tauros
14. Zapdos

GS OU:

1. Blissey
2. Cloyster
3. Exeggutor
4. Forretress
5. Gengar
6. Heracross
7. Jolteon
8. Machamp
9. Marowak
10. Miltank
11. Misdreavus
12. Nidoking
13. Porygon2
14. Raikou
15. Rhydon
16. Skarmory
17. Snorlax
18. Starmie
19. Steelix
20. Tyranitar
21. Umbreon
22. Vaporeon
23. Zapdos

RS OU:

1. Aerodactyl
2. Blissey
3. Celebi
4. Claydol
5. Cloyster
6. Dugtrio
7. Flygon
8. Forretress
9. Gengar
10. Gyarados
11. Heracross
12. Jirachi
13. Jolteon
14. Magneton
15. Metagross
16. Milotic
17. Porygon2
18. Raikou
19. Regice
20. Salamence
21. Skarmory
22. Snorlax
23. Starmie
24. Suicune
25. Swampert
26. Tyranitar
27. Zapdos

DP OU:

1. Aerodactyl
2. Azelf
3. Blissey
4. Breloom
5. Bronzong
6. Celebi
8. Dragonite
9. Dusknoir
10. Electivire
11. Empoleon
12. Flygon
13. Forretress
14. Gengar
15. Gliscor
16. Gyarados
17. Heatran
18. Hippowdon
19. Infernape
20. Jirachi
21. Jolteon
22. Kingdra
23. Lucario
24. Machamp
25. Magnezone
26. Mamoswine
27. Metagross
28. Ninjask
29. Roserade
30. Rotom-Fan
31. Rotom-Frost
32. Rotom-Heat
33. Rotom-Mow
34. Rotom-Wash
35. Scizor
36. Shaymin
37. Skarmory
38. Smeargle
39. Snorlax
40. Starmie
41. Suicune
42. Swampert
43. Tentacruel
44. Togekiss
45. Tyranitar
46. Umbreon
47. Vaporeon
48. Weavile
49. Zapdos

BW OU:

1. Alakazam
2. Blissey
3. Breloom
4. Celebi
5. Cloyster
6. Conkeldurr
7. Donphan
8. Dragonite
9. Dugtrio
10. Espeon
11. Excadrill
12. Ferrothorn
13. Forretress
14. Garchomp
15. Gastrodon
16. Gengar
17. Gliscor
18. Gyarados
19. Haxorus
20. Heatran
21. Hippowdon
22. Hydreigon
23. Infernape
24. Jellicent
25. Jirachi
26. Jolteon
27. Keldeo
28. Kyurem-Black
29. Landorus-Therian
30. Latias
31. Latios
32. Lucario
33. Magnezone
34. Mamoswine
35. Metagross
36. Ninetales
37. Politoed
38. Reuniclus
39. Rotom-Wash
40. Salamence
41. Scizor
42. Skarmory
43. Starmie
44. Tentacruel
45. Terrakion
46. Thundurus-Therian
47. Toxicroak
48. Tyranitar
49. Vaporeon
50. Venusaur
51. Volcarona

XY OU:

1. Amoonguss
2. Azelf
3. Azumarill
4. Bisharp
5. Breloom
6. Chansey
7. Charizard-Mega-X
8. Charizard-Mega-Y
9. Clefable
10. Diancie-Mega
11. Dragonite
12. Dugtrio
13. Excadrill
14. Ferrothorn
15. Garchomp
16. Garchomp-Mega
17. Gardevoir-Mega
18. Gengar
19. Gliscor
20. Heatran
21. Heracross-Mega
23. Hippowdon
24. Jirachi
25. Keldeo
26. Kyurem-Black
27. Landorus-Therian
28. Latias
29. Latias-Mega
30. Latios
31. Latios-Mega
32. Lopunny-Mega
33. Magnezone
34. Manaphy
35. Manectric-Mega
36. Medicham-Mega
37. Metagross-Mega
38. Mew
39. Pinsir-Mega
40. Raikou
41. Rotom-Wash
42. Scizor
43. Scizor-Mega
44. Serperior
45. Skarmory
46. Slowbro
47. Slowbro-Mega
48. Starmie
49. Talonflame
50. Tangrowth
51. Thundurus
52. Tornadus-Therian
53. Tyranitar
54. Tyranitar-Mega
55. Venusaur-Mega
56. Volcanion
57. Weavile
58. Zapdos

SM OU:

1. Alakazam-Mega
2. Audino-Mega
3. Beedrill-Mega
4. Buzzwole
5. Celesteela
6. Chansey
7. Charizard-Mega-X
8. Charizard-Mega-Y
9. Dugtrio
10. Excadrill
11. Ferrothorn
12. Garchomp
13. Garchomp-Mega
14. Greninja
15. Greninja-Ash
16. Gyarados-Mega
17. Heatran
18. Heracross-Mega
19. Hoopa-Unbound
20. Houndoom-Mega
21. Jirachi
22. Kartana
23. Landorus-Therian
24. Latios
25. Magearna
26. Magnezone
27. Mamoswine
28. Manaphy
29. Marowak-Alola
30. Mawile-Mega
31. Medicham-Mega
32. Mimikyu
33. Muk-Alola
34. Nihilego
35. Pelipper
36. Pidgeot-Mega
37. Pinsir-Mega
38. Rotom-Wash
39. Sableye-Mega
40. Salamence
41. Scizor-Mega
42. Scolipede
43. Skarmory
44. Steelix-Mega
45. Tangrowth
46. Tapu Bulu
47. Tapu Fini
48. Tapu Koko
49. Tapu Lele
50. Toxapex
51. Tyranitar
52. Venusaur-Mega
53. Volcarona
54. Xurkitree
55. Zapdos
56. Zygarde

1. Alakazam has only been OU in RB and BW.
2. Chansey has been OU three times.
3. Cloyster has not been OU since BW.
4. Exeggutor hasn't been OU since Gen 2.
5. Gengar has always been OU(it has recently risen back).
6. Golem hasn't been OU since Gen 1.
7. Jolteon hasn't been OU since BW.
8. Jynx hasn't been OU since Gen 1.
9. Lapras hasn't been OU since Gen 1.
10. Slowbro has only been OU in RB and XY.
11. Snorlax hasn't been OU since DP.
12. Starmie hasn't been OU since XY.
13. Tauros hasn't been OU since Gen 1.
14. Zapdos has always been OU except BW.
15. Blissey hasn't been OU since BW.
16. Forretress hasn't been OU since BW.
17. Heracross hasn't been OU since RS.
18. Machamp has only been OU in GS and DP.
19. Marowak has only been OU in Gen 2.
20. Miltank hasn't been OU since Gen 2.
21. Misdreavus hasn't been OU since Gen 2.
22. Nidoking hasn't been OU since Gen 2.
23. Porygon2 hasn't been OU since Gen 3.
24. Raikou hasn't been OU since XY.
25. Rhydon hasn't been OU since Gen 2.
26. Skarmory has always been OU since its introduction.
27. Steelix hasn't been OU since Gen 2.
28. Tyranitar has always been OU since its introduction.
29. Umbreon hasn't been OU since Gen 4.
30. Vaporeon hasn't been OU since Gen 3.
31. Aerodactyl hasn't been OU since Gen 4.
32. Celebi hasn't been OU since Gen 5.
33. Claydol has only been OU since Gen 3.
34. Dugtrio has been OU since RS except for DP.
35. Flygon hasn't been OU since DPP.
36. Gyarados hasn't been OU since BW.
37. Jirachi has always been OU since its introduction.
38. Magneton has only been OU in RS.
39. Metagross hasn't been OU since BW.
40. Milotic has only been OU in RS.
41. Regice has only been OU in RS.
42. Salamence has only been OU in RS, BW, and SM.
43. Suicune hasn't been OU since DP.
44. Swampert hasn't been OU since DP.
45. Azelf hasn't been OU since XY.
46. Breloom hasn't been OU since XY.
47. Bronzong has only been OU in DP.
48. Dragonite hasn't been OU since XY.
49. Dusknoir has only been OU in DP.
50. Electivire has only been OU in DP.
51. Empoleon has only been OU in DP.
52. Gliscor hasn't been OU since XY.
53. Heatran has always been OU since its introduction.
54. Hippowdon hasn't been OU since XY.
55. Infernape hasn't been OU since BW.
56. Kingdra has only been OU in DPP.
57. Lucario hasn't been OU since BW.
58. Magnezone has always been OU since its introduction.
59. Mamoswine has always been OU except for XY.
60. Ninjask has only been OU in DPP.
61. Roserade has only been OU in DPP.
62. Rotom forms besides Wash have only been OU in DPP.
63. Rotom-Wash has been OU since its introduction.
64. Scizor hasn't been OU since XY.
65. Shaymin has only been OU in DP.
66. Smeargle has only been OU in DP.
67. Tentacruel hasn't been OU since BW.
68. Togekiss has only been OU in DP.
69. Weavile has only been OU in DP and XY.
70. Conkeldurr has only been OU in BW.
71. Donphan has only been OU in BW
72. Espeon has only been OU in BW.
73. Excadrill has been OU since its introduction.
74. Ferrothorn has been OU since its introduction.
75. Gastrodon has only been OU in BW.
76. Garchomp has been OU since BW.
77. Haxorus has only been OU in BW.
78. Hydreigon has only been OU in BW.
79. Jellicent has only been OU in BW.
80. Keldeo hasn't been OU since XY.
81. Kyurem-Black hasn't been OU since XY.
82. Landorus-Therian has been OU since its introduction.
83. Latias hasn't been OU since XY.
84. Latios has been OU since BW.
85. Ninetales has only been OU in BW.
86. Politoed has only been OU in BW.
87. Reuniclus has only been OU in BW.
88. Terrakion has only been OU in BW.
89. Thundurus-Therian hasn't been OU since BW.
90. Toxicroak has only been OU since BW.
91. Venusaur has only been OU since BW.
92. Volcarona has only been OU in BW and SM.
93. Amoonguss has only been OU in XY.
94. Azumarill has only been OU in XY.
95. Bisharp has only been OU in XY.
96. Clefable has only been OU in XY.
97. Manaphy has been OU since XY.
98. Mew has only been OU in XY.
99. Serperior has only been OU in XY.
100. Talonflame has only been OU in XY.

Mind you Smogon's SM OU is far from complete. This is very tentative.