This Week's card is:
A more mainstream way of saying what this card does is:
Exile a creature you control and add mana equal to the creature's converted mana cost of any color to your mana pool, and only use it to cast creature spells.
I like this card it's like an old style Birthing Pod, where one is consumed for something more powerful.
It just lacks the tutoring aspect of birthing pod
It makes it up by not costing anything to make a stronger creature, sort of
And it can be used multiple times, so if a lot of your creatures are say, pacified you can wipe them all out for something better