Well because theres like HUNDREDS of pokemon not in the dream world, heres a link to all of them INSIDE the dream world. The ones you don't see in the list are NOT available.
Unova No. Pic Name Type Abilities Base Stats
HP Att Def S.Att S.Def Spd
PLEASANT FOREST
#019
Rattata
Hustle 30 56 35 25 35 72
#029
Nidoran♀
Hustle 55 47 52 40 40 41
#032
Nidoran♂
Hustle 46 57 40 40 40 50
#043
Oddish
Run Away 45 50 55 75 65 30
#069
Bellsprout
Gluttony 50 75 35 70 30 40
#077
Ponyta
Flame Body 50 85 55 65 65 90
#083
Farfetch'd
Defiant 52 65 55 58 62 60
#084
Doduo
Tangled Feet 35 85 45 35 35 75
#102
Exeggcute
Harvest 60 40 80 60 45 40
#108
Lickitung
Cloud Nine 90 55 75 60 75 30
#114
Tangela
Regenerator 65 55 115 100 40 60
#115
Kangaskhan
Inner Focus 105 95 80 40 80 90
#161
Sentret
Frisk 35 46 34 35 45 20
#174
Igglybuff
Friend Guard 90 30 15 40 20 15
#179
Mareep
Plus 55 40 40 65 45 35
#187
Hoppip
Infiltrator 35 35 40 35 55 50
#191
Sunkern
Early Bird 30 30 30 30 30 30
#234
Stantler
Sap Sipper 73 95 62 85 65 85
#261
Poochyena
Rattled 35 55 35 30 30 35
#270
Lotad
Own Tempo 40 30 30 40 50 30
#276
Taillow
Scrappy 40 55 30 30 30 85
#283
Surskit
Rain Dish 40 30 32 50 52 65
#399
Bidoof
Moody 59 45 40 35 40 31
#403
Shinx
Guts 45 65 34 40 34 45
Pokémon Over 7,500 Points
Unova No. Pic Name Type Abilities Base Stats
HP Att Def S.Att S.Def Spd
#054
Psyduck
Swift Swim 50 52 48 65 50 55
#058
Growlithe
Justified 55 70 45 70 50 60
#123
Scyther
Steadfast 70 110 80 55 80 105
#128
Tauros
Sheer Force 75 100 95 40 70 110
#183
Marill
Sap Sipper 70 20 50 20 50 40
#185
Sudowoodo
Rattled 70 100 115 30 65 30
#203
Girafarig
Sap Sipper 70 80 65 90 65 85
#241
Miltank
Sap Sipper 95 80 105 40 70 100
#263
Zigzagoon
Quick Feet 38 30 41 30 41 60
#309
Electrike
Minus 40 45 40 65 40 65
#351
Castform
Forecast 70 70 70 70 70 70
#417
Pachirisu
Volt Absorb 60 45 70 45 90 95
#427
Buneary
Limber 55 66 44 44 56 85
#431
Glameow
Keen Eye 49 55 42 42 37 85
Pokémon Over 10,000 Points
Unova No. Pic Name Type Abilities Base Stats
HP Att Def S.Att S.Def Spd
#037
Vulpix
Drought 38 41 40 50 65 65
#060
Poliwag
Swift Swim 40 50 40 40 40 90
#177
Natu
Magic Bounce 40 50 45 70 45 70
#239
Elekid
Vital Spirit 45 63 37 65 55 95
#300
Skitty
WINDSWEPT SKY
Unova No. Pic Name Type Abilities Base Stats
HP Att Def S.Att S.Def Spd
#012
Butterfree
Tinted Lens 60 45 50 80 80 70
#016
Pidgey
Big Pecks 40 45 40 35 35 56
#021
Spearow
Sniper 40 60 30 31 31 70
#041
Zubat
Infiltrator 40 45 35 30 40 55
#142
Aerodactyl
Unnerve 80 105 65 60 75 130
#163
Hoothoot
Tinted Lens 60 30 30 36 56 50
#165
Ledyba
Rattled 40 20 30 40 80 55
#177
Natu
Magic Bounce 40 50 45 70 45 70
#187
Hoppip
Infiltrator 35 35 40 35 55 50
#193
Yanma
Frisk 65 65 45 75 45 95
#198
Murkrow
Prankster 60 85 42 85 42 91
#207
Gligar
Immunity 65 75 105 35 65 85
#225
Delibird
Insomnia 45 55 45 65 45 75
#276
Taillow
Scrappy 40 55 30 30 30 85
#278
Wingull
Rain Dish 40 30 30 55 30 85
#333
Swablu
Cloud Nine 45 40 60 40 75 50
#397
Staravia
Reckless 55 75 50 40 40 80
#425
Drifloon
Flare Boost 90 50 34 60 44 70
Pokémon Over 7,500 Points
Unova No. Pic Name Type Abilities Base Stats
HP Att Def S.Att S.Def Spd
#227
Skarmory
Weak Armor 65 80 140 40 70 70
#357
Tropius
Harvest 99 68 83 72 87 51
#441
Chatot
SPARKLING SEA
Unova No. Pic Name Type Abilities Base Stats
HP Att Def S.Att S.Def Spd
#079
Slowpoke
Regenerator 90 65 65 40 40 15
#098
Krabby
Sheer Force 30 105 90 25 25 50
#116
Horsea
Damp 30 40 70 70 25 60
#118
Goldeen
Lightningrod 45 67 60 35 50 63
#119
Seaking
Lightningrod 80 92 65 65 80 68
#120
Staryu
Analytic 30 45 55 70 55 85
#129
Magikarp
Rattled 20 10 55 15 20 80
#138
Omanyte
オムナイト
This is just some of them since it won't let me post more then a certain amount of characters. Another reason why you won't get that much answers. Also, if we did show you all the ones unavailable, would you actually read all of the pokemon? LINK TO AVILABLE POKES: http://www.serebii.net/blackwhite/dreamworldareas.shtml