I use Raticate in this game a lot, but meh. It's not that good, but it suits me really well.
;020;@X-ray Specs
Thunderbolt - Kecleon killer, especially when they corner you
Ice Beam - long range move, for any pesky being you do not want come near
Dig - filler move...
Shadow Ball - long range move, uses Raticates better Attack
Or if something that's actually good (and that I like)...
;112;@X-Ray Specs/Tight Belt
Earthquake - room-wide move
Ice Beam - long distance move + counters Grass
Thunderbolt - counters Water
Megahorn - Power move (and counters my brother's pesky Mew)
or
;130;@X-ray Specs/Tight Belt
Earthquake - room-wide move + counters Electric (Especially to get them before they reach you)
Thunderbolt - counters Water
Surf/Hydro Pump - counters Rock
Ice Beam - counters Dragon