Sephiroth, Fabled SOLDIER // Sephiroth, One-Winged Angel - Borderless - Full Art - Legendary - Inverted

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.