The process of stealing a tournament winning TCG/OCG/CCG decklist from a discussion forum and replicating it. Implies a lack of creativity and desire to do nothing other than win in the player.

Clans are notorious for this, particularly like the lamers who make up the Yu-Gi-Oh clan "g3n3s1s".
Go to any tournament for this type of game and you'll see a lot of it. The winning decks will always have a great deal of cards in common.
by Hino-Kagu-Tsuchi December 20, 2004
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The process of a card for card copying of a winning decklist from a collectible card game that was posted on the internet. If it wasn't posted online, it's not netdecking.

Clans who do this are usually very intelligent -- they know it's the best way to win. Those who play games for a profit live and die by this.
ExMinionOfDarkness netdecked Eric Wu's Zombie/Chaos deck to qualify at the 4-10-05 Butler, PA Regionals.
by Michael Lucas April 11, 2005
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1. One who goes online in pursuit of a partial or whole successful deck of cards in games like Hearthstone, Magic: The Gathering, etc.
Quit being a fucking netdecker, Jmar!
by buttercup13 April 10, 2014
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Noun
Taking a TCG or CCG deck that a player has posted on the internet and playing it as if it were your own.
That bastard netdecked my E-Hero deck.
by Andy May 11, 2005
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