Boomerang Marksman

Boomerang Marksman doesn't untap as normal
during your untap phase.
{t}: Create a colorless Boomerang artifact token
with "{1}, Sacrifice this permanent: Boomerang Marksman deals 1 damage to any target. Untap Boomerang Marksmen at the beginning of your
next upkeep."
Feared throughout Dominaria for their concentration
and precision.