For analysis of more cards the generator created, read this other companion article
Lose the Way might give you that extra turn, Tinker Bell Fast Flier is an Amethyst surfing Minnie, and Sisu Uniting Dragon will lie dormant until the Dragons return from their deep slumber
Like Captain Sisay, Urza uses the futureshifted border with the Vanguard artwork, making for a truly unique card unlike any other in Magic
Seriously though, the card is an excellent storm combo enabler, and it sees play in many formats from Modern and Legacy to cEDH
With plenty of effects to flicker your own creatures at instant speed, you can keep triggering her abilities on your opponents turns over and over again for tons of value
He figured that rarity would be a balancing factor because if you only buy a few packs and get cards through ante and a few trades, how can you get more than one, maybe two of any rare