Budget Alternatives to Hidden Gibbons

Veiled Serpent $0.05 2U · Enchantment When an opponent casts a spell, if this permanent is an enchantment, it becomes a 4/4 Serpent cre... Opal Champion $0.10 2W · Enchantment When an opponent casts a creature spell, if this permanent is an enchantment, it becomes a 3/3 Kn... Veil of Birds $0.15 U · Enchantment When an opponent casts a spell, if this permanent is an enchantment, it becomes a 1/1 Bird creatu... Opal Gargoyle $0.15 1W · Enchantment When an opponent casts a creature spell, if this permanent is an enchantment, it becomes a 2/2 Ga... Lurking Jackals $0.15 B · Enchantment When an opponent has 10 or less life, if this permanent is an enchantment, it becomes a 3/2 Jacka... Opal Caryatid $0.16 W · Enchantment When an opponent casts a creature spell, if this permanent is an enchantment, it becomes a 2/2 So... Opal Guardian $0.23 WWW · Enchantment When an opponent casts a creature spell, if this permanent is an enchantment, this enchantment be... Hidden Ancients $0.24 1G · Enchantment When an opponent casts an enchantment spell, if this permanent is an enchantment, it becomes a 5/... Veiled Apparition $0.24 1U · Enchantment When an opponent casts a spell, if this permanent is an enchantment, it becomes a 3/3 Illusion cr... Opal Acrolith $0.24 2W · Enchantment Whenever an opponent casts a creature spell, if this permanent is an enchantment, it becomes a 2/... Veiled Sentry $0.26 U · Enchantment When an opponent casts a spell, if this permanent is an enchantment, it becomes an Illusion creat... Hidden Spider $0.29 G · Enchantment When an opponent casts a creature spell with flying, if this permanent is an enchantment, it beco... Hidden Guerrillas $0.38 G · Enchantment When an opponent casts an artifact spell, if this permanent is an enchantment, it becomes a 5/3 S... Hidden Stag $0.44 1G · Enchantment Whenever an opponent plays a land, if this permanent is an enchantment, it becomes a 3/2 Elk Beas... Opal Titan $0.48 2WW · Enchantment When an opponent casts a creature spell, if this permanent is an enchantment, it becomes a 4/4 Gi... Veiled Crocodile $0.49 2U · Enchantment When a player has no cards in hand, if this permanent is an enchantment, it becomes a 4/4 Crocodi... Hidden Predators $0.50 G · Enchantment When an opponent controls a creature with power 4 or greater, if this permanent is an enchantment... Hidden Herd $0.55 G · Enchantment When an opponent plays a nonbasic land, if this permanent is an enchantment, it becomes a 3/3 Bea...