Essence Leak 
Enchantment — Aura
$0.25 #26577 0.41 25.9 years
Enchant permanent
As long as enchanted permanent is red or green, it has "At the beginning of your upkeep, sacrifice this permanent unless you pay its mana cost."
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Reality Acid88%
$0.26↑#9427↑0.21↓19.6 years↓
"Enchant permanent"
Song of the Dryads84%
$5.36↑#1816↑0.70↑11.8 years↓
"Enchant permanent"
Intercessor's Arrest78%
$0.21↓#17745↑0.22↓4.5 years↓
"Enchant permanent"
Pendrell Flux75%
$0.13↓#268870.3627.9 years↑
"Enchanted creature has "At the beginning of your upkeep, sacrifice this creature unless you pay its mana cost.""
Disruption Aura74%
$0.11↓#302080.3222.3 years↓
"Enchanted artifact has "At the beginning of your upkeep, sacrifice this artifact unless you pay its mana cost.""
Aether Barrier74%
$5.69↑#14422↑1.07↑26.6 years
"Whenever a player casts a creature spell, that player sacrifices a permanent of their choice unless they pay 
."
."
Pendrell Mists72%
$12.76↑#17212↑1.23↑29.2 years↑
"All creatures have "At the beginning of your upkeep, sacrifice this creature unless you pay .""
.""
Psychic Overload72%
$0.16↓#304190.67↑22.6 years↓
"Enchant permanent"
Breath of Dreams70%
$0.28↑#268090.69↑31.3 years↑
"Green creatures have "Cumulative upkeep .""
.""
Magus of the Tabernacle70%
$2.00↑#17203↑1.26↑19.6 years↓
"All creatures have "At the beginning of your upkeep, sacrifice this creature unless you pay .""
.""
Energy Flux70%
$0.19↓#14903↑1.14↑32.5 years↑
"All artifacts have "At the beginning of your upkeep, sacrifice this artifact unless you pay 
.""
.""