Emarthyel, Impuresteel Hero

At the beginning of combat on your turn, you
may search your library for an Equipment or an
Aura card with mana value equal to Emarthyel's
power, put it onto the battlefield attached to it,
then shuffle.
Whenever Emarthyel deals combat damage to a player, sacrifice a permanent attached to it unless
you pay {x}{b}{b} and X life, where X is the total
mana value of permanents attached to it.