Name:Mana Chains
ManaCost:U
Types:Enchantment Aura
K:Enchant creature
A:SP$ Attach | Cost$ U | ValidTgts$ Creature | AILogic$ Curse
S:Mode$ Continuous | Affected$ Creature.EnchantedBy | AddKeyword$ Cumulative upkeep:1 | Description$ Enchanted creature has "Cumulative upkeep {1}."
SVar:Picture:http://www.wizards.com/global/images/magic/general/mana_chains.jpg
Oracle:Enchant creature\nEnchanted creature has "Cumulative upkeep {1}." (At the beginning of its controller's upkeep, that player puts an age counter on it, then sacrifices it unless they pay its upkeep cost for each age counter on it.)