Killing Wave 
Sorcery
$0.36 #5981 0.78 14.5 years
For each creature, its controller sacrifices it unless they pay X life.
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Cards similar to Killing Wave expected a card that isn't here?
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Vile Consumption86%
$10.46↑#13643↓1.14↑26.0 years↑
"All creatures have "At the beginning of your upkeep, sacrifice this creature unless you pay 1 life.""
Magus of the Tabernacle84%
$2.14↑#17460↓1.52↑19.7 years↑
"All creatures have "At the beginning of your upkeep, sacrifice this creature unless you pay 
.""
.""
Pendrell Mists84%
$12.80↑#17410↓1.61↑29.4 years↑
"All creatures have "At the beginning of your upkeep, sacrifice this creature unless you pay .""
.""
Fade Away79%
$0.26↓#13452↓1.20↑28.3 years↑
"For each creature, its controller sacrifices a permanent of their choice unless they pay ."
."
Cleansing78%
$12.90↑#22213↓1.17↑32.2 years↑
"For each land, destroy that land unless any player pays 1 life."
Pillar Tombs of Aku74%
$1.02↑#29912↓0.47↓29.7 years↑
"At the beginning of each player's upkeep, that player may sacrifice a creature of their choice. If that player doesn't, they lose 5 life and you sacrifice this enchantment."
Bellowing Mauler72%
$0.28↓#19149↓0.67↓4.5 years↓
"At the beginning of your end step, each player loses 4 life unless they sacrifice a nontoken creature of their choice."
Indulgent Tormentor72%
$0.32↓#4012↑0.21↓12.3 years↓
"At the beginning of your upkeep, draw a card unless target opponent sacrifices a creature of their choice or pays 3 life."
The Tabernacle at Pendrell Vale70%
$3239.00↑#8859↓2.83↑32.4 years↑
"All creatures have "At the beginning of your upkeep, destroy this creature unless you pay .""
.""
Geth's Verdict70%
$0.25↓#17765↓0.00↓15.4 years
"Target player sacrifices a creature of their choice and loses 1 life."
Vectis Dominator70%
$0.10↓#29685↓0.13↓17.5 years↑
"
: Tap target creature unless its controller pays 2 life."
: Tap target creature unless its controller pays 2 life."
Slow Motion70%
$0.19↓#24000↓0.22↓27.7 years↑
"At the beginning of the upkeep of enchanted creature's controller, that player sacrifices that creature unless they pay 
."
."
Aura Flux70%
$0.24↓#24741↓1.12↑27.7 years↑
"Other enchantments have "At the beginning of your upkeep, sacrifice this enchantment unless you pay .""
.""