I'll brook no arguments that Land Tax doesn't deserve to be on this list
Blue has a bunch of cards that are in-jokes to the development process of the game, because, well, Blue is the 'smart' colour, right
A 3/3 for three mana with Toxic 1 is already a reasonable deal, but considering that achieving Corrupted is likely going to be a goal of many Phyrexia: All Will Be One draft decks, the upside here is tremendous
You can play it in a deck that won't increase its power and a 1-mana tax for non-creatures to avoid you drawing a card is already good enough to run
Gandalf in Pelennor Fields Aragorn at Helms Deep Flight of The Witch-King The Might of Galadriel Each scene focuses on a brand-new multicolor legendary creature and five accompanying cards in the legends color identity
Ravos, Soultender will pull a creature from my graveyard to my hand at the beginning of my upkeep