Iona, Black Hearted Queen

Iona, Black Hearted Queen can't be sacrificed.
When Iona enters the battlefield, if it was cast,
choose up to one —
• Surveil 6, then exile target nonland permanent.
• Create six 2/2 black Zombie creature tokens.
• Create 6 Treasure tokens, then gain 6 life.
{bull} Each player sacrifices 6 creatures.
Deathtouch, intimidate, afterlife 6