Thassa's Devourer | Enchantment Creature | Elemental | Constellation — Whenever Thassa's Devourer or another enchantment enters the battlefield under your control, target player mills two cards. | David Palumbo
Whitewater Naiads | Enchantment Creature | Nymph | Constellation — Whenever Whitewater Naiads or another enchantment enters the battlefield under your control, target creature can't be blocked this turn. | William Wu
Keranos, God of Storms | Legendary Enchantment Creature | God | Indestructible
As long as your devotion to blue and red is less than seven, Keranos isn't a creature.
Reveal the first card you draw on each of your turns. Whenever you reveal a land card this way, draw a card. Whenever you reveal a nonland card this way, Keranos deals 3 damage to any target. | Daarken
Fleetfeather Cockatrice | Creature | Cockatrice | Flash (You may cast this spell any time you could cast an instant.)
Flying, deathtouch
{5}{G}{U}: Monstrosity 3. (If this creature isn't monstrous, put three +1/+1 counters on it and it becomes monstrous.) | Matt Stewart
Kruphix, God of Horizons | Legendary Enchantment Creature | God | Indestructible
As long as your devotion to green and blue is less than seven, Kruphix isn't a creature.
You have no maximum hand size.
If you would lose unspent mana, that mana becomes colorless instead. | Daarken