Attack Name	Battle Type	Contest Type
Tail Whip
Power Points	Base Power	Accuracy
30	0	100
Battle Effect: Wags the tail to lower the foe's DEFENSE.
Secondary Effect: Lowers opponent's DEFENSE one stage.		Effect Rate: -- %
TM #	Appeal Points	Jam Points
None
Contest Effect: The appeal works great if performed last.
BrightPowder	King's Rock	Physical Contact
Yes	No	No
Battle Palace Style	Battle Arena	Pokémon Hit in Battle
Assist	+0	Both opponents
Picture Example of Tail Whip

Pokémon That Learn Tail Whip By Level Up in Ruby/Sapphire/Emerald/Colosseum/XD:

No.	Pic	Name	Type 1	Type 2
#007		Squirtle
#008		Wartortle
#008		Wartortle
#009		Blastoise
#009		Blastoise
#019		Rattata
#020		Raticate
#025		Pikachu
#026		Raichu
#029		Nidoran (F)
#030		Nidorina
#031		Nidoqueen
#037		Vulpix
#054		Psyduck
#055		Golduck
#055		Golduck
#077		Ponyta
#078		Rapidash
#078		Rapidash
#104		Cubone
#105		Marowak
#105		Marowak
#111		Rhyhorn
#112		Rhydon
#113		Chansey
#115		Kangaskhan
#118		Goldeen
#119		Seaking
#128		Tauros
#133		Eevee
#134		Vaporeon
#135		Jolteon
#136		Flareon
#172		Pichu
#183		Marill
#184		Azumarill
#184		Azumarill
#187		Hoppip
#188		Skiploom
#188		Skiploom
#189		Jumpluff
#189		Jumpluff
#190		Aipom
#194		Wooper
#195		Quagsire
#196		Espeon
#197		Umbreon
#209		Snubbull
#210		Granbull
#242		Blissey
#263		Zigzagoon
#264		Linoone
#264		Linoone
#298		Azurill
#300		Skitty
#352		Kecleon

Pokémon That Learn Tail Whip By Level Up in Fire Red/Leaf Green:

No.	Pic	Name	Type 1	Type 2
#007		Squirtle
#008		Wartortle
#008		Wartortle
#009		Blastoise
#009		Blastoise
#019		Rattata
#020		Raticate
#025		Pikachu
#026		Raichu
#029		Nidoran (F)
#030		Nidorina
#031		Nidoqueen
#037		Vulpix
#054		Psyduck
#055		Golduck
#055		Golduck
#077		Ponyta
#078		Rapidash
#078		Rapidash
#104		Cubone
#105		Marowak
#105		Marowak
#111		Rhyhorn
#112		Rhydon
#113		Chansey
#115		Kangaskhan
#118		Goldeen
#119		Seaking
#128		Tauros
#133		Eevee
#134		Vaporeon
#135		Jolteon
#136		Flareon
#172		Pichu
#183		Marill
#184		Azumarill
#184		Azumarill
#187		Hoppip
#188		Skiploom
#188		Skiploom
#189		Jumpluff
#189		Jumpluff
#190		Aipom
#194		Wooper
#195		Quagsire
#196		Espeon
#197		Umbreon
#209		Snubbull
#210		Granbull
#242		Blissey
#263		Zigzagoon
#264		Linoone
#264		Linoone
#298		Azurill
#300		Skitty
#352		Kecleon

Pokémon That Learn Tail Whip By Breeding:

Pokémon That Learn Tail Whip By Purifying or A Special Way: