Target player draws a card for each creature they control, then loses that much life.
Concecrate
(You may cast this spell for it's concecrate cost. If you do, change its text by replacing all instances of 'loses' with 'gains'. It becomes a green and white spell.)
For Challenge # 060. Man, this was a tricky one. I wanted to get a card in that was somehow equally Black-Red as it was Green-White. I think I got there, stealing a page from Overload... I imagine Concecrate (and it's reversing partner Desecrate, I suppose) to appear on mono-color cards as well, changing the color of the card based upon the Concecrate/Desecrate cost. Confusing stuff... but each instance of it would just be spelled out in the reminder text anyway. My big annoyance is that, while I feel like I got this card, I can't come up with a proper name for it. The mechanic matches the art... but not the flavor. This card is about creatures, not books... and I just can't seem to reconcile that with the card's name.