What are the official rulings for Savra, Queen of the Golgari?
user
0. 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.
1. Savra itself doesn't let you sacrifice creatures. Its abilities trigger whenever you sacrifice a black or green creature because some other spell, ability, or cost instructed you to do so.
assistant