Festering Wound

Oracle Text

Enchant creature

At the beginning of your upkeep, you may put an infection counter on Festering Wound.

At the beginning of the upkeep of enchanted creature's controller, Festering Wound deals X damage to that player, where X is the number of infection counters on Festering Wound.

Card Rulings

10/4/2004 If it is on your creature, you can decide whether to add a counter before or after it damages you.
10/4/2004 Putting on a counter is optional. If you forget, you can’t go back later even if it is something you usually do.