Mortal Obstinacy | Enchantment | Aura | Enchant creature you control
Enchanted creature gets +1/+1.
Whenever enchanted creature deals combat damage to a player, you may sacrifice Mortal Obstinacy. If you do, destroy target enchantment. | Slawomir Maniak
Oppressive Rays | Enchantment | Aura | Enchant creature
Enchanted creature can't attack or block unless its controller pays {3}.
Activated abilities of enchanted creature cost {3} more to activate. | Mark Zug
Hypnotic Siren | Enchantment Creature | Siren | Bestow {5}{U}{U} (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached to a creature.)
Flying
You control enchanted creature.
Enchanted creature gets +1/+1 and has flying. | James Ryman
Thassa's Ire | Enchantment | | {3}{U}: You may tap or untap target creature. | Chris Rahn
Gnarled Scarhide | Enchantment Creature | Minotaur | Bestow {3}{B} (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached to a creature.)
Gnarled Scarhide can't block.
Enchanted creature gets +2/+1 and can't block. | Greg Staples
Flamespeaker's Will | Enchantment | Aura | Enchant creature you control
Enchanted creature gets +1/+1.
Whenever enchanted creature deals combat damage to a player, you may sacrifice Flamespeaker's Will. If you do, destroy target artifact. | Daniel Ljunggren
Font of Fertility | Enchantment | | {1}{G}, Sacrifice Font of Fertility: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle. | Jack Wang