Lurking Jackals 
Enchantment
$0.19 #31821 0.00 27.2 years
When an opponent has 10 or less life, if this permanent is an enchantment, it becomes a 3/2 Jackal creature.
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Opal Avenger90%
$0.41↑#315700.38↑27.6 years
"When you have 10 or less life, if this permanent is an enchantment, it becomes a 3/5 Soldier creature."
Veiled Crocodile88%
$0.45↑#308630.11↑27.9 years
"When a player has no cards in hand, if this permanent is an enchantment, it becomes a 4/4 Crocodile creature."
Hidden Predators83%
$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."
Opal Caryatid81%
$0.11↓#305350.0027.9 years
"When an opponent casts a creature spell, if this permanent is an enchantment, it becomes a 2/2 Soldier creature."
Opal Acrolith80%
$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."
Hidden Stag80%
$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."
Opal Champion78%
$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."
Veil of Birds78%
$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."
Hidden Ancients76%
$0.23↑#275190.12↑27.9 years
"When an opponent casts an enchantment spell, if this permanent is an enchantment, it becomes a 5/5 Treefolk creature."
Opal Gargoyle76%
$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."
Lurking Skirge76%
$0.55↑#312560.0727.6 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."
Hidden Gibbons74%
$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."
Veiled Sentry73%
$0.25↑#283650.19↑27.9 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."
Opal Archangel72%
$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."
Veiled Apparition72%
$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 
.""
Hidden Spider70%
$0.29↑#20701↑0.14↑27.9 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."