Opal Archangel 
Enchantment
$2.15 #29718 0.11 28.0 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.
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Opal Gargoyle97%
$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."
Veil of Birds95%
$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 Acrolith91%
$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."
Opal Caryatid91%
$0.10↓#308030.1328.0 years
"When an opponent casts a creature spell, if this permanent is an enchantment, it becomes a 2/2 Soldier creature."
Veiled Apparition90%
$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 
.""
.""
Opal Guardian90%
$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."
Hidden Spider89%
$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."
Opal Champion86%
$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 Ancients85%
$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."
Hidden Gibbons82%
$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."
Lurking Skirge81%
$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."
Veiled Sentry80%
$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 Titan80%
$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."
Hidden Guerrillas79%
$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 Serpent73%
$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 Jackals72%
$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 Stag70%
$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."