2.5 x 3.5 card sleeves Standard Size Trading quality polypropylene BCW 100 Standard Card Sleeves

The gift mechanic is really cool in a multicolor format, and this one actually can gift an opponent an extra turn at instant speed, letting you insert that extra turn outside of the regular turn order, and meanwhile you get four 2/2 Bird tokens with flying, and then you get a Teferis Protection effect so you can safely observe the chaos you unleashed without being affected by it

I have enjoyed recent examples such as Demolition Field and Volatile Fault

You can do that each turn, power it up with Electricity Generator [Scarlet and Violet], and theme a whole deck around that

In the Battle City finals, he duels Yami Marik, the arc's Big Bad

Things that pass "the Jace test" as I often refer to