Katrinx, The Deceiver

Flying, Fear
When you cast Katrinix, look at the top X cards
of target opponents library where X is the
amount of mana spent to cast Katrinix, exile one
of them face down, then put the rest on the
bottom of that library in a random order. You
may look at and cast that card for as long as it
remains exiled, and you may spend mana as
though it were mana of any type to cast that spell.
Sacrifice a Creature: Gain 1 life, each opponent
looses 1 life, scry 1.