Definitely feels more like a complementary piece than a build-around
Shadowless cards come from the earliest English-language print run of Base Set, produced before a design change added a drop shadow to the right side of the card's artwork window
Speaking to that trend of enchanted characters being the center focus of a card that has a very dark background, Ursula has traces of her black tentacles breaking up a dark purple sea
It makes sure you don't fall behind against the black-white deck, which likely has a good long game that it can use to leverage any kind of delay in your play
The reason this ability is so powerful is that if you have a way to untap an artifact, such as a Voltaic Key, youre then able to draw multiple cards a turn
Ive played for at least couple of hours every day this week, though Im starting to run out of things to do now