Hidden Ancients 
Enchantment
$0.23 #27519 0.12 27.9 years
When an opponent casts an enchantment spell, if this permanent is an enchantment, it becomes a 5/5 Treefolk creature.
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Opal Caryatid94%
$0.11↓#305350.00↓27.9 years
"When an opponent casts a creature spell, if this permanent is an enchantment, it becomes a 2/2 Soldier creature."
Opal Acrolith94%
$0.26↑#304330.29↑27.9 years
"Whenever an opponent casts a creature spell, if this permanent is an enchantment, it becomes a 2/4 Soldier creature."
Opal Gargoyle90%
$0.16↓#303630.0727.9 years
"When an opponent casts a creature spell, if this permanent is an enchantment, it becomes a 2/2 Gargoyle creature with flying."
Hidden Guerrillas87%
$0.37↑#259850.0727.9 years
"When an opponent casts an artifact spell, if this permanent is an enchantment, it becomes a 5/3 Soldier creature with trample."
Hidden Gibbons86%
$11.67↑#18930↑0.38↑27.6 years
"When an opponent casts an instant spell, if this permanent is an enchantment, it becomes a 4/4 Ape creature."
Veil of Birds86%
$0.15↓#283360.33↑27.9 years
"When an opponent casts a spell, if this permanent is an enchantment, it becomes a 1/1 Bird creature with flying."
Opal Champion86%
$0.14↓#305820.44↑27.6 years
"When an opponent casts a creature spell, if this permanent is an enchantment, it becomes a 3/3 Knight creature with first strike."
Opal Archangel85%
$2.10↑#294730.53↑27.9 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 Spider82%
$0.29↑#20701↑0.1427.9 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 Sentry82%
$0.25↑#283650.1927.9 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."
Veiled Apparition80%
$0.18↓#315440.29↑27.9 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 Guardian80%
$0.18↓#304980.00↓19.9 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."
Opal Titan78%
$0.47↑#298210.27↑27.9 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."
Veiled Serpent78%
$0.06↓#279350.0527.9 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 Jackals76%
$0.19↓#318210.00↓27.2 years
"When an opponent has 10 or less life, if this permanent is an enchantment, it becomes a 3/2 Jackal creature."
Hidden Stag76%
$0.46↑#295480.53↑27.9 years
"Whenever an opponent plays a land, if this permanent is an enchantment, it becomes a 3/2 Elk Beast creature."
Hidden Herd73%
$0.45↑#283500.22↑27.9 years
"When an opponent plays a nonbasic land, if this permanent is an enchantment, it becomes a 3/3 Beast creature."
Veiled Crocodile72%
$0.45↑#308630.1127.9 years
"When a player has no cards in hand, if this permanent is an enchantment, it becomes a 4/4 Crocodile creature."
Hidden Predators71%
$0.48↑#278480.29↑27.9 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."