
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

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

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

Hubris | Instant | | Return target creature and all Auras attached to it to their owners' hands. | Seb McKinnon

Pin to the Earth | Enchantment | Aura | Enchant creature
Enchanted creature gets -6/-0. | Johann Bodin

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

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

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