Festering Wound

Enchantment - Aura, 1B (2)
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.¹
Illus. Chippy & Matthew Wilson

Crystal Keep Rulings Summaries

• Putting on a counter is optional. If you forget, you cannot go back later even if it is something you usually do. [D'Angelo 1999/06/01]
• If it is on your creature, you can decide whether to add a counter before or after it damages you. [D'Angelo 1999/06/01]
• Note - Also see Aura, Rule G1.30.
• Note - This card was of type "Enchant Creature" until Oracle 2005/08/01.

Format Legality	Legal in Vintage, Legacy Banned in Extended, Standard
Printings (1/6)	Urza's Destiny (Uncommon)