Its a card with a two-mana summoning cost and also has flash so that you can use the effect during your opponents turn
Two weeks ago, I spoke about my issues with the two Un-sets
Two cards from seven is also probably better than just three off the top in a control list but both are still quite fantastic and not to be complained about
Then you need to factor in your ability to untap creatures
This leaves the deck with a curve of something like suspend Lotus Bloom on Turn 1, cast some cantrips on Turn 2, on Turn 3 play a Phyrexian Unlife, on Turn 4 cast Glorious End on the opponent's upkeep to force them to skip their turn, and on Turn 5 win the game
It makes solid, non-smearing, crisp black lines without making the lines too thick, which can take away from the art and prevent artists from making more detailed, elegant drawings (if a drawing + autograph is included)