Incendiary

Enchantment - Aura, R (1)
Enchant creature

At the beginning of your upkeep, you may put a fuse counter on Incendiary.

When enchanted creature is put into a graveyard, Incendiary deals X damage to target creature or player, where X is the number of fuse counters on Incendiary.¹
Illus. Jeff Laubenstein

Gatherer Card Rulings [Nov 2009]

• 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.

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