Its a Commander variant inspired by the legend of King Arthur and Excalibur, where you pick a common creature to be your champion (commander) and a legendary Equipment to be its signature weapon
Japan Showcase And Fractured Foils Magic has spent the last few years courting Japanese markets with alt-art treatments and famous Japanese illustrators contributing to the game
When it dies or is exiled, return it to the battlefield tapped.) Whenever this creature attacks, each opponent loses X life and you gain X life, where X is the number of creatures you control with +1/+1 counters on them
Runed Crown I like the build-your-own equipment approach to Runed Crown, and it always cantrips given the nature of the rune auras, but there just aren't enough of them, or even super impactful ones at that
They provide powerful effects for free every turn, and can often totally cripple your opposition, ample as it is