I control the black creature [c]Demon of Loathing[/c], the artifact creature [c]Palladium Myr[/c], and nonblack nonartifact creature [c]Thorn Mammoth[/c]
The transformation cost is too high, and even then, you don't get too much benefit
I Just Brewed a Standard Jellyfish Deck in Magic: The Gathering Edge of Eternities and You Should Too When Wizards of the Coast announced that Edge of Eternities was going to be their first full-on space opera set, I was over the moon
Among the best things to do with the card is Grief + Ephemerate on Turn 1, giving you basically two Thoughtseizes and a 3/2 menace
The cost is huge, but what you get for it can be pretty amazing
Sorry Queen Marchesa, but access to blue trumps black in nearly any formatperhaps that's why this does so well in Duel Commander