card pro soft sleeves Ultra 2-5/8" X 3-5/8", Ultra Clear (100Count) : Toys & Games and others Ultra Pro Toploaders and Soft

They might not be the best for competitive events but they hold their own for kitchen-table Magic and the like

They can even serve as phones, as shown when Julia Krystal called in the Leo Corporation security to capture Yuto and Shay Obsidian

Company: Konami Item Type: Single Card Release Date: June 2010 Series: Gold Series 3 Brand: YuGiOh UPC: 0666714265885 Stock #: 207548 Our Guarantees to You, Our Valued Customer

Similarly, if you sacrifice an artifact to activate a mana ability while casting a spell with improvise, that artifact won't be on the battlefield when you pay the spell's costs, so you won't be able to tap it for improvise