Then each of the chosen permanents are sacrificed simultaneously
The four-cost uncommon will draw two and then lose 2 life and make a Black Wizard dork and then pump them with lifelink and power too
Sephiroth, One-Winged Angel Legendary Creature Angel Nightmare Avatar Flying Super Nova As this creature transforms into Sephiroth, One-Winged Angel, you get an emblem with "Whenever a creature dies, target opponent loses 1 life and you gain 1 life." Whenever Sephiroth attacks, you may sacrifice any number of other creatures
If the ability has damage divided as it was put onto the stack, the division can't be changed, although the targets receiving that damage still can
When Ursula, Power Hungry is played, every opponent loses one lore, before you draw a card for each lore lost