The Master Pack is a massive, 6000+-Card set that contains most of Master Duel's Card Pool. It contains every UR, SR, R and N card from every Secret Pack combined. From Tri-Brigade to Toons, almost every deck is accounted for in the Master Pack!
For technical reasons, we cannot show the entire 6750-card pool all on one web-page. We instead direct you towards our comprehensive list of Secret Packs, as it contains most of the card pool (If it's in a Secret Pack it is also in the Master Pack)
Whenever you pull from a Secret Pack, you are also pulling four cards from the Master Pack.