The Loop (Games)
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- In the TCG, this card has a toned-down version called "Brain Serum", and allows the player to draw up to 2 cards instead.
- This card is similar to Magic: The Gathering, a card that enables the player to draw 3 cards just for 1 blue (water) mana. Just like Cyber Brain, it was banned completely due to its sheer versatility. from
- This card is banned in the OCG banlist.
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