Metamorphosis 
Sorcery
$0.32 #8705 0.22 32.7 years
As an additional cost to cast this spell, sacrifice a creature.
Add X mana of any one color, where X is 1 plus the sacrificed creature's mana value. Spend this mana only to cast creature spells.
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Food Chain90%
$21.72↑#2125↑1.60↑26.9 years↓
"Exile a creature you control: Add X mana of any one color, where X is 1 plus the exiled creature's mana value. Spend this mana only to cast creature spells."
Sacrifice88%
$5.77↑#2876↑0.3133.1 years
"Add an amount of 
equal to the sacrificed creature's mana value."
equal to the sacrificed creature's mana value."+1 more matching line
Burnt Offering88%
$1.44↑#3125↑0.2831.3 years↓
"Add X mana in any combination of and/or 
, where X is the sacrificed creature's mana value."
and/or , where X is the sacrificed creature's mana value."+1 more matching line
Geosurge86%
$3.84↑#6355↑0.41↑15.3 years↓
"Add . Spend this mana only to cast artifact or creature spells."
. Spend this mana only to cast artifact or creature spells."
Infernal Plunge82%
$0.47↑#3059↑0.1714.9 years↓
"Add ."
."+1 more matching line
Irencrag Feat80%
$0.78↑#72880.59↑6.9 years↓
"Add seven . You can cast only one more spell this turn."
. You can cast only one more spell this turn."
Seething Song80%
$10.70↑#311↑0.50↑22.9 years↓
"Add ."
."
Channel the Suns79%
$0.70↑#16970↓0.47↑22.3 years↓
"Add 
."
."
Somberwald Sage78%
$0.59↑#2559↑0.2014.3 years↓
"
: Add three mana of any one color. Spend this mana only to cast creature spells."
: Add three mana of any one color. Spend this mana only to cast creature spells."
Open the Omenpaths78%
$0.12↓#12980↓0.33↑5.6 years↓
"• Add two mana of any one color and two mana of any other color. Spend this mana only to cast creature or enchantment spells."
Demon of Catastrophes78%
$0.31↓#15129↓0.208.1 years↓
"As an additional cost to cast this spell, sacrifice a creature."
Slobad, Iron Goblin76%
$0.26↓#11583↓0.38↑3.6 years↓
", Sacrifice an artifact: Add an amount of equal to the sacrificed artifact's mana value. Spend this mana only to cast artifact spells or activate abilities of artifacts."
, Sacrifice an artifact: Add an amount of equal to the sacrificed artifact's mana value. Spend this mana only to cast artifact spells or activate abilities of artifacts."
Vicious Betrayal76%
$0.19↓#28772↓0.2522.3 years↓
"As an additional cost to cast this spell, sacrifice any number of creatures."
Pyretic Ritual76%
$5.98↑#743↑0.32↑16.1 years↓
"Add ."
."
Eldritch Evolution76%
$3.26↑#746↑0.65↑10.1 years↓
"As an additional cost to cast this spell, sacrifice a creature."
Bone Splinters75%
$0.03↓#5966↑0.55↑17.9 years↓
"As an additional cost to cast this spell, sacrifice a creature."
Mishra's Workshop74%
$3249.99↑#3810↑1.55↑32.5 years
": Add 
. Spend this mana only to cast artifact spells."
: Add . Spend this mana only to cast artifact spells."
Reckoner's Bargain74%
$0.95↑#3767↑0.154.5 years↓
"As an additional cost to cast this spell, sacrifice an artifact or creature."
Blazing Firesinger // Seething Song74%
$0.33↑#6165↑0.50↑0.4 years↓
"Add ."
."
Morbid Curiosity74%
$0.18↓#82960.33↑9.9 years↓
"As an additional cost to cast this spell, sacrifice an artifact or creature."