Decomposition 
Enchantment — Aura
$0.10 #30766 0.00 30.0 years
Enchant black creature
Enchanted creature has "Cumulative upkeep—Pay 1 life." (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.)
When enchanted creature dies, its controller loses 2 life.
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Mana Chains87%
$0.28↑#23563↑0.52↑29.4 years
"Enchanted creature has "Cumulative upkeep .""
.""
Black Scarab78%
$0.25↑#248320.12↑31.4 years↑
"Enchanted creature can't be blocked by black creatures."
+1 more matching line
Inevitable End78%
$0.20↑#19693↑0.55↑6.7 years↓
"Enchant creature"
+1 more matching line
Withercrown78%
$0.17↑#19145↑0.29↑5.7 years↓
"Enchanted creature has base power 0 and has "At the beginning of your upkeep, you lose 1 life unless you sacrifice this creature.""
Clawing Torment75%
$0.17↑#8746↑0.14↑4.7 years↓
"Enchanted permanent has "At the beginning of your upkeep, you lose 1 life.""
Soul Bleed75%
$0.09↓#279400.0617.3 years↓
"At the beginning of the upkeep of enchanted creature's controller, that player loses 1 life."
+1 more matching line
Pillory of the Sleepless74%
$0.14↑#18942↑0.50↑20.7 years↓
"Enchanted creature has "At the beginning of your upkeep, you lose 1 life.""
+1 more matching line
Coral Net74%
$0.23↑#295830.36↑24.7 years↓
"Enchanted creature has "At the beginning of your upkeep, sacrifice this creature unless you discard a card.""
Stab Wound74%
$0.12↑#9171↑0.0614.0 years↓
"At the beginning of the upkeep of enchanted creature's controller, that player loses 2 life."
Pendrell Flux72%
$0.12↑#272480.47↑28.0 years↓
"Enchanted creature has "At the beginning of your upkeep, sacrifice this creature unless you pay its mana cost.""
+1 more matching line
Relic Bane71%
$0.10#281380.50↑23.0 years↓
"Enchanted artifact has "At the beginning of your upkeep, you lose 2 life.""
Wanderlust71%
$0.14↑#296550.0733.2 years↑
"Enchant creature"
+1 more matching line
Instill Furor71%
$0.09↓#300990.33↑21.0 years↓
"Enchant creature"
Morgul-Knife Wound71%
$0.20↑#14413↑0.18↑3.3 years↓
"Enchanted creature gets -3/-0 and has "At the beginning of your upkeep, exile this creature unless you pay 2 life.""
Black Ward70%
$0.24↑#23460↑0.0033.2 years↑
"Enchanted creature has protection from black. This effect doesn't remove this Aura."
Disruption Aura70%
$0.15↑#305190.25↑22.4 years↓
"Enchanted artifact has "At the beginning of your upkeep, sacrifice this artifact unless you pay its mana cost.""