Returning from Pokemon Colosseum and Pokemon XD: Gale of Darkness is Shadow Pokemon. These are Pokemon who are of the Shadow type and can be caught from trainers with the Snag Machine, although they only belong to Team Xen members.

As their Heart Gauges go down, they are able to regain some of their former moves. Once the Heart Gauge is completely empty, the Shadow Pokemon can be taken to Dr. Jenkel (only once, may fail) or to Eldest in Purify forest to completely purify it. All the Experience it would've gained as a Shadow Pokemon is regained, the Shadow moves are replaced by new moves, some of which it cannot normally get, and it can now learn TMs.

The current list of Shadow Pokemon, along with where they are and their purify moves are.

Pokemon Available Location Purified Moveset
Meowth Goldenwood Forest
  • Beat Up
  • Fury Swipes
  • Bite
  • None
Finneon Goldenwood Forest
  • Tailwind
  • Water Gun
  • Headbutt
  • None
Cacnea Goldenwood Forest
  • Leech Seed
  • Power-Up Punch
  • Absorb
  • Poison Sting
Grimer (Alolan) Goldenwood Forest
  • Pound
  • Poison Gas
  • Bite
  • Harden
Bonsly Amethyst Cave
  • Rock Throw
  • Shift Gear
  • Fake Tears
  • Tackle
Vanillite Amethyst Cave
  • Uproar
  • Will-o-Wisp
  • Mist
  • Avalanche
Ponyta Caratos Mountain
  • Morning Sun
  • Aqua Jet
  • Flame Wheel
  • Stomp
Quagsire Caratos Mountain
  • Flame Burst
  • Water Pulse
  • Refresh
  • None
Chinchou Valor Shore
  • Whirlpool
  • Heal Bell
  • Parabolic Charge
  • Cosmic Power
Baltoy Sheridan wetlands, Xen Lab
  • Ancient Power
  • Rock Blast
  • Flamethrower
  • Shadow Ball
Masquerain Sheridan Wetlands, Xen Lab
  • Water Pulse
  • Discharge
  • Aqua Ring
  • Ice Beam
Beldum Sheridan Wetlands
  • Zap Cannon
  • Psychic
  • Giga Impact
  • None
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