Savra, Queen of the Golgari
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."
イラスト：
Ravnica Remastered#381レア英語適正
裁定
These abilities trigger specifically when you “sacrifice” a creature. They won’t trigger when a creature is put into your graveyard for any other reason.
Savra itself doesn’t let you sacrifice creatures, and you can’t sacrifice them spontaneously. You must have another spell or ability that lets you sacrifice creatures.
Sacrificing a creature that’s both black and green will make both abilities trigger. You may put them on the stack in whichever order you want.