card inner sleeves 5000 Pack Clear, Perfect Fit Sleeves Ideal for Double-sleeving, Trading Card Sleeve Compatible with MTG, PKM, TCG and Gaming Cards (60 Microns) : Toys & Games Sized Cards – Designed for cards measuring 63.5mm x 88mm Closable Inner Sleeves 64x89

That requirement is indeed a drawback, plus there's nothing here to add to your mana, but otherwise, this Uncharted Secret Lair treasure hunter is a good way to use an opponent's strategy against them

Card Set(s) -Two Legends- [OP-08] CARD VIEW OP08-116 | C | EVENT Burn Bazooka Block Icon 2 Type Sky Island/Shandian Warrior Effect [Counter] Up to 1 of your Leader or Character cards gains +4000 power during this battle

4800 for "True Kings", 4600 for "Dragon Rulers"

It also promised to bring permanent changes to the status quo of the Marvel Universe, which it did...for a while at least

A couple of creatures that care about instant and sorcery spells are likely worth a few slots too, like Niblis of Frost and Wizards of Thay

and Triangle Circle for use