Opal Acrolith

Whenever an opponent casts a creature spell, if Opal Acrolith is an enchantment, Opal Acrolith becomes a 2/4 Soldier creature.
{0}: Opal Acrolith becomes an enchantment.

Abundance

If you would draw a card, you may instead choose land or nonland and reveal cards from the top of your library until you reveal a card of the chosen kind. Put that card into your hand and put all other cards revealed this way on the bottom of your library in any order.

Catastrophe

Destroy all lands or all creatures. Creatures destroyed this way can't be regenerated.

Gaea's Cradle

{T}: Add {G} for each creature you control.

Opal Archangel

When an opponent casts a creature spell, if Opal Archangel is an enchantment, Opal Archangel becomes a 5/5 Angel creature with flying and vigilance.

Pariah

Enchant creature
All damage that would be dealt to you is dealt to enchanted creature instead.

Argothian Enchantress

Shroud (This creature can't be the target of spells or abilities.)
Whenever you cast an enchantment spell, draw a card.

Phyrexian Processor

As Phyrexian Processor enters, pay any amount of life.
{4}, {T}: Create an X/X black Phyrexian Minion creature token, where X is the life paid as Phyrexian Processor entered.

Priest of Titania

{T}: Add {G} for each Elf on the battlefield.

Endless Wurm

Trample
At the beginning of your upkeep, sacrifice Endless Wurm unless you sacrifice an enchantment.

Opal Gargoyle

When an opponent casts a creature spell, if Opal Gargoyle is an enchantment, Opal Gargoyle becomes a 2/2 Gargoyle creature with flying.

Serra's Liturgy

At the beginning of your upkeep, you may put a verse counter on Serra's Liturgy.
{W}, Sacrifice Serra's Liturgy: Destroy up to X target artifacts and/or enchantments, where X is the number of verse counters on Serra's Liturgy.

Crystal Chimes

{3}, {T}, Sacrifice Crystal Chimes: Return all enchantment cards from your graveyard to your hand.

Forest

Angelic Chorus

Whenever a creature you control enters, you gain life equal to its toughness.

Brilliant Halo

Enchant creature
Enchanted creature gets +1/+2.
When Brilliant Halo is put into a graveyard from the battlefield, return Brilliant Halo to its owner's hand.

Serra's Sanctum

{T}: Add {W} for each enchantment you control.

Monk Idealist

When Monk Idealist enters, return target enchantment card from your graveyard to your hand.

Plains

Opal Titan

When an opponent casts a creature spell, if Opal Titan is an enchantment, Opal Titan becomes a 4/4 Giant creature with protection from each of that spell's colors.

Congregate

Target player gains 2 life for each creature on the battlefield.

Serra Avatar

Serra Avatar's power and toughness are each equal to your life total.
When Serra Avatar is put into a graveyard from anywhere, shuffle it into its owner's library.

Opal Caryatid

When an opponent casts a creature spell, if Opal Caryatid is an enchantment, Opal Caryatid becomes a 2/2 Soldier creature.