Operation Spiderweb

Whenever Operation Spiderweb becomes crewed, create X 0/1 colorless Drone artifact creature tokens with flying and "Sacrifice this creature: Choose target creature or artifact. Destroy it," where X is
the number of creatures target opponent controls.
At the beginning of the end step, sacrifice Operation Spiderweb, the creature that crewed it this turn, and all Drone tokens created this way.

Morph {u}{b}
Crew 1