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Reason: Overworld sprite, Card GB2.

あらいモン Arai Mon
Aaron's sprite in Pokémon Card GB2
Gender Male
Hometown Unknown
Region Trading Card Game Islands
Generation I
Games Pokémon Trading Card Game, Pokémon Card GB2: Here Comes Team GR!

Aaron (Japanese: あらいモン Arai Mon) is one of Dr. Mason's technicians in the video games Pokémon Trading Card Game and Pokémon Card GB2: Here Comes Team GR!.


In Pokémon Trading Card Game

Aaron can be dueled to a 4-prize duel at any time in the Mason Laboratory. He plays one of three decks and allows the player to choose which deck he uses. When the player wins a duel against him, he awards the player a Colosseum booster pack containing only Energy cards.


Lightning & Fire Deck

Quantity Card Type Rarity
Charmander Fire Common
Charmeleon Fire Uncommon
Charizard Fire Rare Holo
Growlithe Fire Uncommon
Arcanine Fire Uncommon
Ponyta Fire Common
Rapidash Fire Uncommon
Magmar Fire Uncommon
Magmar Fire Uncommon
Pikachu Lightning Common
Pikachu Lightning Common
Raichu Lightning Rare Holo
Magnemite Lightning Common
Magneton Lightning Rare Holo
Voltorb Lightning Common
Electrode Lightning Rare
Electrode Lightning Rare Holo
Rattata Colorless Common
Raticate Colorless Uncommon
Professor Oak T Uncommon
Bill T Common
Energy Search T Common
Switch T Common
PlusPower T Uncommon
Defender T Uncommon
Potion T Common
Double Colorless Energy Colorless E Uncommon
10× Fire Energy Fire E
10× Lightning Energy Lightning E

Water & Fighting Deck

Quantity Card Type Rarity
Poliwag Water Common
Poliwhirl Water Uncommon
Poliwrath Water Rare Holo
Seel Water Uncommon
Dewgong Water Uncommon
Goldeen Water Common
Seaking Water Uncommon
Staryu Water Common
Starmie Water Common
Sandshrew Fighting Common
Sandslash Fighting Uncommon
Machop Fighting Common
Machoke Fighting Uncommon
Machamp Fighting Rare Holo
Hitmonchan Fighting Rare Holo
Rhyhorn Fighting Common
Rhydon Fighting Uncommon
Professor Oak T Uncommon
Bill T Common
Energy Search T Common
Potion T Common
Full Heal T Uncommon
Double Colorless Energy Colorless E Uncommon
12× Water Energy Water E
10× Fighting Energy Fighting E

Grass & Psychic Deck

Quantity Card Type Rarity
Weedle Grass Common
Kakuna Grass Uncommon
Beedrill Grass Rare
Nidoran♀ Grass Common
Nidorina Grass Uncommon
Paras Grass Common
Parasect Grass Uncommon
Exeggcute Grass Common
Exeggutor Grass Uncommon
Pinsir Grass Rare Holo
Abra Psychic Common
Kadabra Psychic Uncommon
Drowzee Psychic Common
Hypno Psychic Rare Holo
Jynx Psychic Uncommon
Farfetch'd Colorless Uncommon
Tauros Colorless Uncommon
Bill T Common
Energy Search T Common
Gust of Wind T Common
Potion T Common
Full Heal T Uncommon
12× Grass Energy Grass E
12× Psychic Energy Psychic E

In Pokémon Card GB2

Aaron will give Mark or Mint the Aaron's Step 1 Deck to teach them how to deal with evolutionary cards.


Pokémon Trading Card Game

Mason Laboratory
  • Before battle
"Ho-ho! Won't you duel me to test your deck? If you win, I'll give you a booster pack—but it only contains Energy cards."
No: "It's important to know how your deck performs."
Yes: "Ho-ho! Please choose the deck you wish to duel against."
  • Choosing deck
"Ho-ho! Ok, let's start a 4-prize match!"
  • After duel
"Ho-ho! You win! Here you go, as promised!" (only if player wins)
"Ho-ho! How about it? Did you get a feel for your deck? Ho-ho! Come again. I'll be glad to duel you any time."


Language Title
Japan Flag.png Japanese あらいモン Arai Mon
France Flag.png French Gilles
Germany Flag.png German Adrian
Italy Flag.png Italian Aaron
Spain Flag.png Spanish Aarón

NPCs in the Trading Card Game Islands
Dr. MasonRonaldMr. IshiharaImakuni?Tech SamTech Aaron
Club MembersClub MastersGrand MastersTeam Great Rocket

Project CharacterDex logo.png This game character article is part of Project CharacterDex, a Bulbapedia project that aims to write comprehensive articles on each character found in the Pokémon games.