Essence Leak 
Enchantment — Aura
$0.27 #26889 0.40 26.0 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 Acid86%
$0.26↓#9607↑0.4119.7 years↓
"Enchant permanent"
Song of the Dryads83%
$5.73↑#1835↑0.61↑12.0 years↓
"Enchant permanent"
Intercessor's Arrest78%
$0.22↓#18015↑0.474.7 years↓
"Enchant permanent"
Breath of Dreams74%
$0.30↑#270840.75↑31.4 years↑
"Green creatures have "Cumulative upkeep 
.""
.""
Pendrell Flux74%
$0.12↓#272480.4728.0 years↑
"Enchanted creature has "At the beginning of your upkeep, sacrifice this creature unless you pay its mana cost.""
+1 more matching line
Disruption Aura73%
$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.""
High Seas73%
$0.21↓#250490.81↑27.0 years
"Red creature spells and green creature spells cost more to cast."
more to cast."
Aether Barrier72%
$6.20↑#14547↑1.24↑26.7 years
"Whenever a player casts a creature spell, that player sacrifices a permanent of their choice unless they pay ."
."
Dystopia72%
$45.59↑#252900.94↑30.4 years↑
"At the beginning of each player's upkeep, that player sacrifices a green or white permanent of their choice."
Psychic Overload72%
$0.10↓#307560.20↓22.7 years↓
"Enchant permanent"
Pendrell Mists71%
$12.80↑#17410↑1.61↑29.4 years↑
"All creatures have "At the beginning of your upkeep, sacrifice this creature unless you pay .""
.""
Magus of the Tabernacle70%
$2.14↑#17460↑1.52↑19.7 years↓
"All creatures have "At the beginning of your upkeep, sacrifice this creature unless you pay .""
.""
Controlled Instincts70%
$0.08↓#307210.3817.7 years↓
"Enchant red or green creature"