Opal Caryatid 
Enchantment
$0.10 #30803 0.13 28.0 years
When an opponent casts a creature spell, if this permanent is an enchantment, it becomes a 2/2 Soldier creature.
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Opal Acrolith100%
$0.26↑#306780.00↓28.0 years
"Whenever an opponent casts a creature spell, if this permanent is an enchantment, it becomes a 2/4 Soldier creature."
Hidden Ancients94%
$0.24↑#279340.0628.0 years
"When an opponent casts an enchantment spell, if this permanent is an enchantment, it becomes a 5/5 Treefolk creature."
Opal Gargoyle94%
$0.18↑#306390.0628.0 years
"When an opponent casts a creature spell, if this permanent is an enchantment, it becomes a 2/2 Gargoyle creature with flying."
Opal Champion92%
$0.10#307970.00↓27.7 years
"When an opponent casts a creature spell, if this permanent is an enchantment, it becomes a 3/3 Knight creature with first strike."
Hidden Gibbons92%
$11.06↑#19381↑0.00↓27.7 years
"When an opponent casts an instant spell, if this permanent is an enchantment, it becomes a 4/4 Ape creature."
Veil of Birds91%
$0.14↑#286030.00↓28.0 years
"When an opponent casts a spell, if this permanent is an enchantment, it becomes a 1/1 Bird creature with flying."
Opal Archangel91%
$2.15↑#297180.1128.0 years
"When an opponent casts a creature spell, if this permanent is an enchantment, it becomes a 5/5 Angel creature with flying and vigilance."
Hidden Spider88%
$0.35↑#21041↑0.0728.0 years
"When an opponent casts a creature spell with flying, if this permanent is an enchantment, it becomes a 3/5 Spider creature with reach."
Veiled Sentry88%
$0.25↑#287200.1228.0 years
"When an opponent casts a spell, if this permanent is an enchantment, it becomes an Illusion creature with power and toughness each equal to that spell's mana value."
Opal Titan86%
$0.42↑#301380.00↓28.0 years
"When an opponent casts a creature spell, if this permanent is an enchantment, it becomes a 4/4 Giant creature with protection from each of that spell's colors."
Opal Guardian86%
$0.24↑#307280.00↓20.0 years↓
"When an opponent casts a creature spell, if this permanent is an enchantment, this enchantment becomes a 3/4 Gargoyle creature with flying and protection from red."
Veiled Apparition86%
$0.21↑#317800.00↓28.0 years
"When an opponent casts a spell, if this permanent is an enchantment, it becomes a 3/3 Illusion creature with flying and "At the beginning of your upkeep, sacrifice this creature unless you pay 
.""
Hidden Guerrillas86%
$0.38↑#263120.1128.0 years
"When an opponent casts an artifact spell, if this permanent is an enchantment, it becomes a 5/3 Soldier creature with trample."
Veiled Serpent84%
$0.06↓#282350.00↓28.0 years
"When an opponent casts a spell, if this permanent is an enchantment, it becomes a 4/4 Serpent creature with "This creature can't attack unless defending player controls an Island.""
Lurking Jackals80%
$0.16↑#321070.00↓27.4 years
"When an opponent has 10 or less life, if this permanent is an enchantment, it becomes a 3/2 Jackal creature."
Hidden Stag80%
$0.44↑#298860.00↓28.0 years
"Whenever an opponent plays a land, if this permanent is an enchantment, it becomes a 3/2 Elk Beast creature."
Hidden Predators80%
$0.48↑#282060.00↓28.0 years
"When an opponent controls a creature with power 4 or greater, if this permanent is an enchantment, it becomes a 4/4 Beast creature."
Hidden Herd78%
$0.42↑#286680.33↑28.0 years
"When an opponent plays a nonbasic land, if this permanent is an enchantment, it becomes a 3/3 Beast creature."
Lurking Skirge76%
$0.58↑#315850.1127.7 years
"When a creature is put into an opponent's graveyard from the battlefield, if this permanent is an enchantment, it becomes a 3/2 Phyrexian Imp creature with flying."