Ariel, Priestess of the Nekroz

{t}: You may reveal any amount of Nekroz spells
from your hand, then increase or decrease this
creatures converted mana cost equal to the
number of cards revealed this way.
If Ariel, Priestess of the Nekroz is sacrificed,
search your library for a Nekroz creature that
doesn't have Ritual, reveal it, put it in your
hand, then shuffle your library.
Limited 3