bank card protector sleeves RFID Blocking Credit 8 RFID blocking credit card sleeves Holds one ISO7810 ID 10PCS Anti RFID Blocking Card

Ive also included some of my other favorite side deck choices for you to consider when building your side deck for Lightsworn

Thassa's Oracle will be better with more Blue permanents around, but doesn't actually require you to do anything to produce value and cost-effectiveness

These lands enter tapped "unless you control two or more other lands", not basic lands, but any other lands

SR Super Rare UR Ultra Rare SE Secret Rare UL Ultimate Rare PS Platinum Secret Rare CR COLLECTOR'S RARE QCSE Quarter Century Secret Rare Mekk-Knight Crusadia Avramax X LIGHT Link 4 [ CyberseLinkEffect ] ATK 3000 DEF - 2+ monsters Special Summoned from the Extra Deck While this Link Summoned card is on the field, your opponent cannot target this card with card effects, also their monsters cannot target monsters for attacks, except this one