Whenever you sacrifice a permanent, put a +1/+1 counter on Juri, Master of the Revue.
When Juri dies, it deals damage equal to its power to any target.
"What a show! We're going to make a killing tonight."
Juri's first ability doesn't allow you to sacrifice any permanents. You'll have to find another way to do that.
10-11-2020
wotc
For Juri's second ability, use its power from when it was last on the battlefield to determine how much damage is dealt. If that power was 0 or less, Juri deals no damage.
Random a card of Magic: The Gathering (MTG), but you can also roll the D20 dice, random a Planeswalker, have fun with the random rules and more.