Aerial Formation | Instant | | Strive — This spell costs {2}{U} more to cast for each target beyond the first.
Any number of target creatures each get +1/+1 and gain flying until end of turn. | Zack Stella
Battlefield Thaumaturge | Creature | Human Wizard | Each instant and sorcery spell you cast costs {1} less to cast for each creature it targets.
Heroic — Whenever you cast a spell that targets Battlefield Thaumaturge, Battlefield Thaumaturge gains hexproof until end of turn. | Mike Sass
Cloaked Siren | Creature | Siren | Flash (You may cast this spell any time you could cast an instant.)
Flying | Mark Zug
Countermand | Instant | | Counter target spell. Its controller mills four cards. | Clint Cearley
Crystalline Nautilus | Enchantment Creature | Nautilus | Bestow {3}{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.)
When Crystalline Nautilus becomes the target of a spell or ability, sacrifice it.
Enchanted creature gets +4/+4 and has "When this creature becomes the target of a spell or ability, sacrifice it." | Brad Rigney
Dakra Mystic | Creature | Merfolk Wizard | {U}, {T}: Each player reveals the top card of their library. You may put the revealed cards into their owners' graveyards. If you don't, each player draws a card. | Wesley Burt
Daring Thief | Creature | Human Rogue | Inspired — Whenever Daring Thief becomes untapped, you may exchange control of target nonland permanent you control and target permanent an opponent controls that shares a card type with it. | Johann Bodin
Dictate of Kruphix | Enchantment | | Flash
At the beginning of each player's draw step, that player draws an additional card. | Daarken
Font of Fortunes | Enchantment | | {1}{U}, Sacrifice Font of Fortunes: Draw two cards. | Jonas De Ro
Godhunter Octopus | Creature | Octopus | Godhunter Octopus can't attack unless defending player controls an enchantment or an enchanted permanent. | Tyler Jacobson
Hour of Need | Instant | | Strive — This spell costs {1}{U} more to cast for each target beyond the first.
Exile any number of target creatures. For each creature exiled this way, its controller creates a 4/4 blue Sphinx creature token with flying. | Jesper Ejsing
Hubris | Instant | | Return target creature and all Auras attached to it to their owners' hands. | Seb McKinnon
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
Interpret the Signs | Sorcery | | Scry 3, then reveal the top card of your library. Draw cards equal to that card's mana value. (To scry 3, look at the top three cards of your library, then put any number of them on the bottom of your library and the rest on top in any order.) | Cynthia Sheppard
Kiora's Dismissal | Instant | | Strive — This spell costs {U} more to cast for each target beyond the first.
Return any number of target enchantments to their owners' hands. | Mathias Kollros
Pin to the Earth | Enchantment | Aura | Enchant creature
Enchanted creature gets -6/-0. | Johann Bodin
Polymorphous Rush | Instant | | Strive — This spell costs {1}{U} more to cast for each target beyond the first.
Choose a creature on the battlefield. Any number of target creatures you control each become a copy of that creature until end of turn. | Ryan Barger
Pull from the Deep | Sorcery | | Return up to one target instant card and up to one target sorcery card from your graveyard to your hand. Exile Pull from the Deep. | Ryan Yee
Riptide Chimera | Enchantment Creature | Chimera | Flying
At the beginning of your upkeep, return an enchantment you control to its owner's hand. | Ryan Barger
Rise of Eagles | Sorcery | | Create two 2/2 blue Bird enchantment creature tokens with flying. Scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.) | Noah Bradley
Sage of Hours | Creature | Human Wizard | Heroic — Whenever you cast a spell that targets Sage of Hours, put a +1/+1 counter on it.
Remove all +1/+1 counters from Sage of Hours: For each five counters removed this way, take an extra turn after this one. | Matt Stewart
Scourge of Fleets | Creature | Kraken | When Scourge of Fleets enters the battlefield, return each creature your opponents control with toughness X or less to its owner's hand, where X is the number of Islands you control. | Steven Belledin
Sigiled Starfish | Creature | Starfish | {T}: Scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.) | Nils Hamm
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
Thassa's Ire | Enchantment | | {3}{U}: You may tap or untap target creature. | Chris Rahn
Triton Cavalry | Creature | Merfolk Soldier | Heroic — Whenever you cast a spell that targets Triton Cavalry, you may return target enchantment to its owner's hand. | Kev Walker
Triton Shorestalker | Creature | Merfolk Rogue | Triton Shorestalker can't be blocked. | Svetlin Velinov
War-Wing Siren | Creature | Siren Soldier | Flying
Heroic — Whenever you cast a spell that targets War-Wing Siren, put a +1/+1 counter on War-Wing Siren. | Magali Villeneuve
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
Disciple of Deceit | Creature | Human Rogue | Inspired — Whenever Disciple of Deceit becomes untapped, you may discard a nonland card. If you do, search your library for a card with the same mana value as that card, reveal it, put it into your hand, then shuffle. | Daarken
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
Stormchaser Chimera | Creature | Chimera | Flying
{2}{U}{R}: Scry 1, then reveal the top card of your library. Stormchaser Chimera gets +X/+0 until end of turn, where X is that card's mana value. (To scry 1, look at the top card of your library, then you may put that card on the bottom of your library.) | Greg Staples
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
Temple of Epiphany | Land | | Temple of Epiphany enters the battlefield tapped.
When Temple of Epiphany enters the battlefield, scry 1.
{T}: Add {U} or {R}. | Noah Bradley