Theros Beyond Death

Alirios, Enraptured | Legendary Creature | Human | Alirios, Enraptured enters the battlefield tapped. Alirios doesn't untap during your untap step if you control a Reflection. When Alirios enters the battlefield, create a 3/2 blue Reflection creature token. | Kieran Yanner

Callaphe, Beloved of the Sea | Legendary Enchantment Creature | Demigod | Callaphe's power is equal to your devotion to blue. (Each {U} in the mana costs of permanents you control counts toward your devotion to blue.) Creatures and enchantments you control have "Spells your opponents cast that target this permanent cost {1} more to cast." | Zack Stella

Deny the Divine | Instant | | Counter target creature or enchantment spell. If that spell is countered this way, exile it instead of putting it into its owner's graveyard. | Yigit Koroglu

Elite Instructor | Creature | Human Wizard | When Elite Instructor enters the battlefield, draw a card, then discard a card. | Mike Sass

Ichthyomorphosis | Enchantment | Aura | Enchant creature Enchanted creature loses all abilities and is a blue Fish with base power and toughness 0/1. | Campbell White

Nadir Kraken | Creature | Kraken | Whenever you draw a card, you may pay {1}. If you do, put a +1/+1 counter on Nadir Kraken and create a 1/1 blue Tentacle creature token. | Dan Scott

Naiad of Hidden Coves | Enchantment Creature | Nymph | As long as it's not your turn, spells you cast cost {1} less to cast. | Kieran Yanner

Thirst for Meaning | Instant | | Draw three cards. Then discard two cards unless you discard an enchantment card. | Brian Valeza

Vexing Gull | Creature | Bird | Flash Flying | Volkan Baǵa

Wavebreak Hippocamp | Enchantment Creature | Horse Fish | Whenever you cast your first spell during each opponent's turn, draw a card. | Caio Monteiro

Whirlwind Denial | Instant | | For each spell and ability your opponents control, counter it unless its controller pays {4}. | Lie Setiawan

Dalakos, Crafter of Wonders | Legendary Creature | Merfolk Artificer | {T}: Add {C}{C}. Spend this mana only to cast artifact spells or activate abilities of artifacts. Equipped creatures you control have flying and haste. | Ryan Pancoast

Eutropia the Twice-Favored | Legendary Creature | Human Wizard | Constellation — Whenever an enchantment enters the battlefield under your control, put a +1/+1 counter on target creature. That creature gains flying until end of turn. | Sara Winters

Uro, Titan of Nature's Wrath | Legendary Creature | Elder Giant | When Uro enters the battlefield, sacrifice it unless it escaped. Whenever Uro enters the battlefield or attacks, you gain 3 life and draw a card, then you may put a land card from your hand onto the battlefield. Escape—{G}{G}{U}{U}, Exile five other cards from your graveyard. (You may cast this card from your graveyard for its escape cost.) | Vincent Proce