legendary creature — human avatar soldier

whenever sephiroth enters or attacks, you may sacrifice another creature. if you do, draw a card.
whenever another creature dies, target opponent loses 1 life and you gain 1 life. if this is the fourth time this ability has resolved this turn, transform sephiroth.

//

sephiroth, one-winged angel

flying

super nova — as this creature transforms into sephiroth, one-winged angel, you get an emblem with "whenever a creature dies, target opponent loses 1 life and you gain 1 life."

whenever sephiroth attacks, you may sacrifice any number of other creatures. if you do, draw that many cards.