Heart of Bogardan

Enchantment

Cumulative upkeep

When a player doesn't pay this enchantment's cumulative upkeep, this enchantment deals X damage to target player or planeswalker and each creature that player or that planeswalker's controller controls, where X is twice the number of age counters on this enchantment minus 2.

Heart of Bogardan is on the reserved list, which means WOTC has self-imposed restrictions from making functional reprints of this card.