Pioneer Masters

Thunderclap Wyvern | Creature | Drake | Flash (You may cast this spell any time you could cast an instant.) Flying Other creatures you control with flying get +1/+1. | Jason Felix

Ephara, God of the Polis | Legendary Enchantment Creature | God | Indestructible As long as your devotion to white and blue is less than seven, Ephara isn't a creature. At the beginning of each upkeep, if you had another creature enter the battlefield under your control last turn, draw a card. | Eric Deschamps

Narset Transcendent | Legendary Planeswalker | Narset | +1: Look at the top card of your library. If it's a noncreature, nonland card, you may reveal it and put it into your hand. −2: When you next cast an instant or sorcery spell from your hand this turn, it gains rebound. (Exile the spell as it resolves. At the beginning of your next upkeep, you may cast that card from exile without paying its mana cost.) −9: You get an emblem with "Your opponents can't cast noncreature spells." | Magali Villeneuve

Iroas, God of Victory | Legendary Enchantment Creature | God | Indestructible As long as your devotion to red and white is less than seven, Iroas isn't a creature. Creatures you control have menace. Prevent all damage that would be dealt to attacking creatures you control. | Slawomir Maniak

Growing Ranks | Enchantment | | At the beginning of your upkeep, populate. (Create a token that's a copy of a creature token you control.) | Madeline Boni

Alive | Sorcery | | Create a 3/3 green Centaur creature token. Fuse (You may cast one or both halves of this card from your hand.) | Nils Hamm