Riftbound Sealed!
6 Origins packs, additional pack for 3 - 0 Record.
Sealed rules can be found below
6 packs.
3 domains.
Exactly 25 card decks
Signature spells only need to be within your domain identity, and not champion type.
Chosen champion doesn't have to match legend (if you have one).
No need for a Chosen Champion or a Champion Legend if you don't have one.
Limited sideboard is rest of your cardpool
Three battlefields are required; if you don't have three (or don't want to use them, you can use a facedown card as a 'blank battlefield'.
Runes aren't required to be opened to play.
Card quantity limits don't apply.
Otherwise, decks must meet the requirements that a normal constructed deck needs to meet.
