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

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

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