Deathmark

This card's color is black and it is a creature, artifact, and enchantment in addition to its other
types.
Target a creature/planeswalker/player. If the
target is a creature/planeswalker, Deathmark has Indestructible. Deathmark gets time counters
equal to half the target's toughness, loyalty, or
life total rounded down. If Deathmark has no
time counters on it, the target dies. At the
beginning of your turn, remove a time counter
from Deathmark.