Azriel, Shadowsinger

Vigilance, shroud
Azriel, Shadowsinger enters the battlefield
with X experience counters on it, where
X = mana used to cast the spell.
{1}{u} Scry 1. Add 1 experience counter for
every card scried this way.
{4}{u}{b} Create X 0/1 black Shadow
tokens, where X is the amount of
experience counters on this creature.
{2}{b} Sacrifice a creature: Draw a card.