Sealed Format is a Deck format used at Sneak Peek events.

In this format, players are given unopened packs and make Decks with a minimum of 20 cards, using only cards they get in these packs.[1]

The usual Deck construction rules do not apply in Sealed Format events. A player can have as many copies of a card as he/she likes in their Main Deck, Side Deck or Extra Deck if they get more than 3 copies. Also, all cards a player doesn't use in his or her Deck are used as his or her Side Deck (this can mean the Side Deck becomes more than 15 cards).

Re-Draw rule

In Sealed Pack Play, at the start of a Duel, each player can choose to place their entire hand on the bottom of their Deck, then draw 5 cards to re-form their starting hand, then shuffle their Deck. Each player can only choose to do this once per Match. The player who goes first has the opportunity to do so first, then the player who goes second has this opportunity; if the first player decides not to re-draw, they cannot re-draw even if their opponent decides to.

Prior to the rule change that prevented the player who goes first from conducting their normal draw during their first turn, this was required to be performed before the first player conducted their normal draw.[2][3]


  1. Storm of Ragnarok Sneak Peak
  2. The Re-Draw Rule: What it is and How it Works
  3. Re-Draw Rule Implemented for Battle Pack 2 sealed play (also, a few words on deck size)