Fade Away
Sorcery
For each creature, its controller sacrifices a permanent of their choice unless they pay 
.
"Consider the fable of the greedy herder. As her flock grew, so did her weariness; she slept, and the sheep wandered off." —Karn, silver golem
Jeff Miracola
The List (PLST)
• #EXO-34Rulings
At the beginning of the resolution, each player counts up the number of creatures they control, then they make the required number of payments and/or sacrifices. The active player announces their choices first followed by the other players, but all the sacrifices are done at the same time. Because of this, you can’t sacrifice one creature in order to pay for another and thereby avoid payment for the first.
(wotc • 2004-10-04)
You can choose to pay some mana and sacrifice some permanents if you have more than one creature.
(wotc • 2004-10-04)
You can activate mana abilities during the resolution if you decide to pay mana.
(wotc • 2004-10-04)
Rulings
At the beginning of the resolution, each player counts up the number of creatures they control, then they make the required number of payments and/or sacrifices. The active player announces their choices first followed by the other players, but all the sacrifices are done at the same time. Because of this, you can’t sacrifice one creature in order to pay for another and thereby avoid payment for the first.
(wotc • 2004-10-04)
You can choose to pay some mana and sacrifice some permanents if you have more than one creature.
(wotc • 2004-10-04)
You can activate mana abilities during the resolution if you decide to pay mana.
(wotc • 2004-10-04)