
Armament of Nyx | Enchantment | Aura | Enchant creature
Enchanted creature has double strike as long as it's an enchantment. Otherwise, prevent all damage that would be dealt by enchanted creature. (A creature with double strike deals both first-strike and regular combat damage.) | Slawomir Maniak

Banishing Light | Enchantment | | When Banishing Light enters the battlefield, exile target nonland permanent an opponent controls until Banishing Light leaves the battlefield. | Willian Murai
3.5 LSV

Eagle of the Watch | Creature | Bird | Flying, vigilance | Scott Murphy

Eidolon of Rhetoric | Enchantment Creature | Spirit | Each player can't cast more than one spell each turn. | Ryan Yee

Godsend | Legendary Artifact | Equipment | Equipped creature gets +3/+3.
Whenever equipped creature blocks or becomes blocked by one or more creatures, you may exile one of those creatures.
Your opponents can't cast spells with the same name as a card exiled with Godsend.
Equip {3} | Daniel Ljunggren

Harvestguard Alseids | Enchantment Creature | Nymph | Constellation — Whenever Harvestguard Alseids or another enchantment enters the battlefield under your control, prevent all damage that would be dealt to target creature this turn. | Igor Kieryluk

Phalanx Formation | Instant | | Strive — This spell costs {1}{W} more to cast for each target beyond the first.
Any number of target creatures each gain double strike until end of turn. (They deal both first-strike and regular combat damage.) | Dan Scott

Tethmos High Priest | Creature | Cat Cleric | Heroic — Whenever you cast a spell that targets Tethmos High Priest, return target creature card with mana value 2 or less from your graveyard to the battlefield. | Mark Zug

Athreos, God of Passage | Legendary Enchantment Creature | God | Indestructible
As long as your devotion to white and black is less than seven, Athreos isn't a creature.
Whenever another creature you own dies, return it to your hand unless target opponent pays 3 life. | Ryan Barger