The Neccronomicon

When The Necronomicon enters that battlefield
sacrifice a permeant
When you sacrifice a permanent put a ritual
counter on The Necronomicon.
{t} Discard a card and sacrifice a permanent
the card discarded gains madness where the
madness cost is {1} less than the
mana value of the spell.
At 7 counters transform The Necronomicon
ph'nglui mglw'nafh Cthulhu R'lyeh wgah'nagl fhtagn