Mason Laboratory

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The Mason Laboratory (Japanese: オーヤマ研究所 Ōyama Institute) or Mason Lab[1] is a location in TCG Island, in the games Pokémon Trading Card Game and Pokémon Trading Card Game 2: The Invasion of Team GR!.

In the spin-off games

Pokémon Trading Card Game

In Pokémon Trading Card Game, the player Mark goes to the Mason Laboratory automatically at the start of the game. After beating Sam's introduction battle, Dr. Mason gives him a choice of three decks to start off with. They are the Charmander & Friends Deck, Squirtle & Friends Deck, and Bulbasaur & Friends Deck. He also gives the player 30 additional cards, which are decided by which deck the player picked.

After getting the Starter Deck, the player can get Energy cards by beating either Tech Sam (in a normal duel) or Aaron. If the player has less than 10 energy cards outside his decks, the Tech at the northeast corner of the first room gives him 60 Basic Energy cards, specifically 10 of each type.

At the start of the game, there is one available Auto Deck Machine, which can be used to build some predefined decks, and the Deck Save Machine, which can be used to save customized decks for later use. Additional Auto Deck Machines from each Club can be unlocked to copy the decks of any Club Member or Club Master, provided the player has the necessary Medal from the respective Club. The player must have all the necessary cards to build a deck in any Auto Deck machine.

After the player beats the beats the game, Dr. Mason builds a Challenge Machine for card duels.

Starter Decks

These are three starter decks in Pokémon Trading Card Game, all of which feature the Kanto starters.


Deck Name User
Practice Deck Sam
Fire & Lightning Deck Aaron
Water & Fighting Deck Aaron
Grass & Psychic Deck Aaron

Pokémon Trading Card Game 2: The Invasion of Team GR!

In Pokémon Trading Card Game 2: The Invasion of Team GR!, the player Mark or Mint once again goes to the Mason Laboratory automatically at the start of the game. This time, Dr. Mason gives the Starter Deck to the player.

Like in the previous game, Dr. Mason builds a Challenge Machine for card duels after the player beats the game.



Game Left Room Center Room Right Room
TCG GB1 TGC GB Mason Lab Main.png TCG GB Mason Lab Right.png
TCG GB2 TCG GB2 Mason Lab Left.png TCG GB2 Mason Lab Main.png TCG GB2 Mason Lab Right.png

In other languages

Language Title
Japan Flag.png Japanese オーヤマ研究所 Ōyama Institute
France Flag.png French Laboratoire Dr Mason
Germany Flag.png German Masons Labor
Italy Flag.png Italian Laboratorio Mason
Spain Flag.png Spanish Laboratorio de Mayo

See also


  1. Pokémon Trading Card Game instruction booklet
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TCG Islands
Grass Medal Science Medal Fire Medal Water Medal Lightning Medal Psychic Medal Rock Medal Fighting Medal
TCG Island
Fighting ClubFire ClubGrass ClubLightning Club
Psychic ClubRock ClubScience ClubWater Club
Other locations
AirportChallenge HallMason LaboratoryIshihara's HousePokémon Dome
GR Island
GR Bases
GR Grass FortGR Lightning FortGR Fire FortGR Water Fort
GR Fighting FortGR Psychic StrongholdColorless AltarGR Castle
Other locations
AirportChallenge HallGame CenterMr. Ishihara's VillaSealed Fort

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