10 oversized premium foil cards
Unbreakable Xyz Barrier X TRAP Counter When a Spell/Trap Card, or monster effect, is activated while you control an Xyz Monster: Negate the activation, then you can detach 2 materials from a monster(s) you control, then destroy 1 card on the field
If were dealing with mandatory effects, their effects still activate, but only as long as we abide by the previous rules (public knowledge and preserved card type)
Contents: 14 Magic: The Gathering cards Play Boosters may contain these cards: SPM 1231
That said even if you consider it as a 4-mana card its still very strong and you really want to pick it early
For a few extra euros per deck, you get: Protection against spilled liquids Barrier against dust and humidity Better long-term preservation Perfect uniformity for tournaments If you have valuable cards or play regularly, double-sleeving should become automatic