When someone plays a board wipe like {Supreme Verdict} or {Fated Retribution} and it's not countered, does all creatures go to the graveyard at the same time? If so, triggers like "when this or another zombie dies, each opponent loses 1 life", does it count for all zombies effected with the board wipe, or does the AP choose what is destroyed first, second, third, etc.
To further this, if someone followed with {Faith's Reward} does ETB triggers all trigger at the same time?
Each creature would leave the battlefield and enter the battlefield simultaneously to answer both questions. Those creatures see all others leave and enter the battlefield with them. So yes if a {Diregraf Captain} were to die with 3 other zombies, the opponent would lose 3 life. And if {Purphoros, God of the Forge} enters the battle field with 3 other creatures, an opponent will lose 6 life