COV Martyr

When COV Martyr enters the
battlefield, create a Bomb token. (It's an
artifact with "This enters the battlefield
tapped." and "{1}, {t}: Sacrifice this artifact:
It deals 2 damage to any target.")
When you sacrifice a Bomb, you may
sacrifice COV Martyr. When you do, COV
Martyr deals 1 damage to any target.