Budget Alternatives to Opal Archangel

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... Halcyon Glaze $0.06 1UU · Enchantment Whenever you cast a creature spell, this enchantment becomes a 4/4 Illusion creature with flying ... 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... 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... 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 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... 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/... Hidden Ancients $0.24 1G · Enchantment When an opponent casts an enchantment spell, if this permanent is an enchantment, it becomes a 5/... 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... Angelic Aberration $0.37 5W · Eldrazi Angel Devoid 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... Lurking Skirge $0.40 1B · Enchantment When a creature is put into an opponent's graveyard from the battlefield, if this permanent is an... 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... Hidden Predators $0.50 G · Enchantment When an opponent controls a creature with power 4 or greater, if this permanent is an enchantment...