I love the value of sacrificing a creature that has blocked, and if you have eight or more lands, triggering the damage on your opponent's turn
You collect the cards but dont really battle anyone, until you hear of a contest: beat the Pokemon TCG League2 and get The Legendary Cards, one-of-a-kind items that are actually quite shitty competitively-speaking.3 You talk to Dr
This card reminds me of a card from the recent New Capenna Commander product called Spellbinding Soprano, but it feels like a much more powerful and more repeatable version of that card with the addition of myriad to replace encore and the ability to flash in sorcery spells
Every land you top deck has the chance to become something to help you win, and if you draw another land, you probably have a way to play it to draw again
The Official Site has more information for new players
In Legacy, its used in Stompy lists to power out busted cards like Chalice of the Void and Caves of Chaos Adventurer