Savra, Queen of the Golgari Foil

Legendary Creature — Elf Shaman

Whenever you sacrifice a black creature, you may pay 2 life. If you do, each other player sacrifices a creature of their choice. Whenever you sacrifice a green creature, you may gain 2 life.

"Nature's most raw beauty is the circle: perfect in its continuance, with no break between death and life."