(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
Origin of the Hidden Ones deals 4 damage to any target.
Create two 1/1 black Assassin creature tokens with
menace (This creature can't be blocked except by two or more creatures.).
Whenever an Assassin you control attacks this turn, create a 1/1 black Assassin creature token with
menace (This creature can't be blocked except by two or more creatures.) that's tapped and attacking.