Sidisi, Brood Tyrant How many Zombies?
Now that the FAQ is out I can answer this.
You will get one zombie.
From the Release Notes: “Any instruction, including Sidisi’s first ability, that tells you to put multiple cards from a library into a graveyard moves all the cards at the same time. For example, if Sidisi enters the battlefield and you put three creature cards into your graveyard, Sidisi’s last ability will trigger once and you’ll put one Zombie token onto the battlefield.”
Daniel Kitachewsky
L4, Paris, France
Rules NetRep