yugioh art of the cards OCG: LOCH - New Protagonist Cards! Seto Kaiba Yu-Gi-Oh! News : Yu-Gi-Oh! THE

In Set Boosters, you had the potential to get up to 6 commons, but that came at the cost of not getting additional uncommons, rares, and mythic rares

Not only do these give you more things to do in every game, but they could help mitigate discard from spells like Cathartic Reunion, or give you extra value from getting milled (intentionally or otherwise)

Arterial Alchemy generates three Blood tokens upon entering the battlefield if you're in a pod of four players

Black Ship lets you set this value

Therefore, you could theoretically reduce your deck's land count by one if you run three of these cards

Secret Lair is now just as much a lottery as opening boosters