how does the extra deck work in yugioh

how does the extra deck work in yugioh Fusions that you can summon with Heavy Polymerization using only monsters from and losing the least amount of LP possible (main deck pendulum monsters that can be materials Extra Deck | Yu-Gi-Oh! Wiki

Name: how does the extra deck work in yugioh Fusions that you can summon with Heavy Polymerization using only monsters from and losing the least amount of LP possible (main deck pendulum monsters that can be materials Extra Deck | Yu-Gi-Oh! Wiki
Brand: excellencyproduct.com
SKU: 39792228308
Price: 23.17 USD
Availability: InStock
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SKU: 39792228308

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USD23.17 USD65.17

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Description

The Collector Booster Box is the ultimate collecting experience for Lorwyn Eclipsed, containing 12 Collector Boosters designed to maximize your chances of finding the rarest and most beautiful cards in the set