Battle Moveset

The best Moveset for Feebas would have to be this:

Attacks:

Attract
Toxic
Protect
Confuse Ray

Items Attached:

Leftovers

Preferred Nature:

Timid

Strategy Using Feebas

Feebas is pretty weak, so the best you can hope for is to status effect your opponents, and with this set it is highly possible to do this. Your set relies heavily on status moves so be weary of their percentage of missing, because that can come up big in a pressure situation. However, the alternative is attacking directly, and with its horrible attacks that would be a very bad idea. Best used on fun teams really, it is outclassed by several dozen pokemon

Strategy Against Feebas

What to use against Feebas? Something fast and hits hard, either one of those work. With its horrible defenses the possibilities of defeating this one are limitless.

Contest Moveset

The best Moveset for Feebas would have to be this for the Beauty Contest best with Modest, Mild, Rash or Quiet Nature:

Attacks:

Dive
Rain Dance
Surf
Water Pulse

Items Attached:

Blue Scarf

Strategy Using Feebas

This set is riddled with combos which are very good at getting Appeal Points so just use the attacks and you should be able to win

Locations in Games

Ruby/Sapphire Fishing in certain spots on Route 119 Colosseum Trade From R/S Fire Red/Leaf Green Trade From R/S

Animé Appearences

Feebas has had one Animé Appearence. It was only found when Team Rocket were fishing. It kept catching onto Jessie's hair Episode 351: Showdown! Fishing Master & The Giant Whiscash!