Envisioned Demise

Destroy target creature. If that creature has mana
value 2 or less, create an Omen token. If that
creature has mana value 4 or greater, its
controller creates an Omen token. (It's an artifact
with "{1}, Sacrifice this artifact: Surveil 2.")
Foreshadow {u/b} ({u/b}, Discard this card, Surveil 2.)
Mages on Noctur are known to keep the horrors of the Depths at bay with horrors of their own