Throne of Eldraine

Mistford River Turtle | Creature | Turtle | Whenever Mistford River Turtle attacks, another target attacking non-Human creature can't be blocked this turn. | Milivoj Ćeran

Turn into a Pumpkin | Instant | | Return target nonland permanent to its owner's hand. Draw a card. Adamant — If at least three blue mana was spent to cast this spell, create a Food token. (It's an artifact with "{2}, {T}, Sacrifice this artifact: You gain 3 life.") | Vincent Proce

Vantress Paladin | Creature | Human Knight | Flying Adamant — If at least three blue mana was spent to cast this spell, Vantress Paladin enters the battlefield with a +1/+1 counter on it. | Lucas Graciano

Arcanist's Owl | Artifact Creature | Bird | Flying When Arcanist's Owl enters the battlefield, look at the top four cards of your library. You may reveal an artifact or enchantment card from among them and put it into your hand. Put the rest on the bottom of your library in a random order. | Véronique Meignaud

Covetous Urge | Sorcery | | Target opponent reveals their hand. You choose a nonland card from that player's graveyard or hand and exile it. You may cast that card for as long as it remains exiled, and you may spend mana as though it were mana of any color to cast that spell. | Carmen Sinek

Loch Dragon | Creature | Dragon | Flying Whenever Loch Dragon enters the battlefield or attacks, you may discard a card. If you do, draw a card. | Mike Bierek

Thunderous Snapper | Creature | Turtle Hydra | Whenever you cast a spell with mana value 5 or greater, draw a card. | Johann Bodin