Theros Beyond Death

Glimpse of Freedom | Instant | | Draw a card. Escape—{2}{U}, Exile five other cards from your graveyard. (You may cast this card from your graveyard for its escape cost.) | Clint Cearley

Medomai's Prophecy | Enchantment | Saga | (As this Saga enters and after your draw step, add a lore counter. Sacrifice after IV.) I — Scry 2. II — Choose a card name. III — When you cast a spell with the chosen name for the first time this turn, draw two cards. IV — Look at the top card of each player's library. | Seb McKinnon

Stinging Lionfish | Enchantment Creature | Fish | Whenever you cast your first spell during each opponent's turn, you may tap or untap target nonland permanent. | Christopher Burdett

Sweet Oblivion | Sorcery | | Target player mills four cards. Escape—{3}{U}, Exile four other cards from your graveyard. (You may cast this card from your graveyard for its escape cost.) | Clint Cearley

Threnody Singer | Creature | Siren | Flash Flying When Threnody Singer enters the battlefield, target creature an opponent controls gets -X/-0 until end of turn, where X is your devotion to blue. (Each {U} in the mana costs of permanents you control counts toward your devotion to blue.) | PINDURSKI

Staggering Insight | Enchantment | Aura | Enchant creature Enchanted creature gets +1/+1 and has lifelink and "Whenever this creature deals combat damage to a player, draw a card." | Dmitry Burmak

Devourer of Memory | Creature | Nightmare | Whenever one or more cards are put into your graveyard from your library, Devourer of Memory gets +1/+1 until end of turn and can't be blocked this turn. {1}{U}{B}: Mill a card. | Daarken

Mischievous Chimera | Enchantment Creature | Chimera | Flying Whenever you cast your first spell during each opponent's turn, Mischievous Chimera deals 1 damage to each opponent. Scry 1. | Antonio José Manzanedo