
Aqueous Form | Enchantment | Aura | Enchant creature
Enchanted creature can't be blocked.
Whenever enchanted creature attacks, scry 1. (Look at the top card of your library. You may put that card on the bottom.) | Slawomir Maniak

Guild Summit | Enchantment | | When Guild Summit enters, you may tap any number of untapped Gates you control. Draw a card for each Gate tapped this way.
Whenever a Gate you control enters, draw a card. | Sidharth Chaturvedi

Sphinx's Tutelage | Enchantment | | Whenever you draw a card, target opponent mills two cards. If two nonland cards that share a color were milled this way, repeat this process.
{5}{U}: Draw a card, then discard a card. | Slawomir Maniak

Flitterstep Eidolon | Enchantment Creature | Spirit | Bestow {5}{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.)
Flitterstep Eidolon can't be blocked.
Enchanted creature gets +1/+1 and can't be blocked. | Chase Stone

Oath of Jace | Legendary Enchantment | | When Oath of Jace enters, draw three cards, then discard two cards.
At the beginning of your upkeep, scry X, where X is the number of planeswalkers you control. | Wesley Burt