Wilds of Eldraine

Moonshaker Cavalry | Creature | Spirit Knight | Flying When Moonshaker Cavalry enters the battlefield, creatures you control gain flying and get +X/+X until end of turn, where X is the number of creatures you control. | Aldo Domínguez

Rowdy Research | Instant | | This spell costs {1} less to cast for each creature that attacked this turn. Draw three cards. | Bram Sels

Virtue of Persistence | Enchantment | | At the beginning of your upkeep, put target creature card from a graveyard onto the battlefield under your control. | Piotr Dura

Hamlet Glutton | Creature | Giant | Bargain (You may sacrifice an artifact, enchantment, or token as you cast this spell.) This spell costs {2} less to cast if it's bargained. Trample When Hamlet Glutton enters the battlefield, you gain 3 life. | Edgar Sánchez Hidalgo

Thunderous Debut | Sorcery | | Bargain (You may sacrifice an artifact, enchantment, or token as you cast this spell.) Look at the top twenty cards of your library. You may reveal up to two creature cards from among them. If this spell was bargained, put the revealed cards onto the battlefield. Otherwise, put the revealed cards into your hand. Then shuffle. | Aldo Domínguez

Virtue of Strength | Enchantment | | If you tap a basic land for mana, it produces three times as much of that mana instead. | Piotr Dura