
Hushwing Gryff | Creature | Hippogriff | Flash
Flying
Creatures entering the battlefield don't cause abilities to trigger. | John Severin Brassell

Preeminent Captain | Creature | Kithkin Soldier | First strike (This creature deals combat damage before creatures without first strike.)
Whenever Preeminent Captain attacks, you may put a Soldier creature card from your hand onto the battlefield tapped and attacking. | Greg Staples

Chasm Skulker | Creature | Squid Horror | Whenever you draw a card, put a +1/+1 counter on Chasm Skulker.
When Chasm Skulker dies, create X 1/1 blue Squid creature tokens with islandwalk, where X is the number of +1/+1 counters on Chasm Skulker. (They can't be blocked as long as defending player controls an Island.) | Jack Wang

Polymorphist's Jest | Instant | | Until end of turn, each creature target player controls loses all abilities and becomes a blue Frog with base power and toughness 1/1. | Craig J Spearing

Goblin Rabblemaster | Creature | Goblin Warrior | Other Goblin creatures you control attack each combat if able.
At the beginning of combat on your turn, create a 1/1 red Goblin creature token with haste.
Whenever Goblin Rabblemaster attacks, it gets +1/+0 until end of turn for each other attacking Goblin. | Svetlin Velinov

Chord of Calling | Instant | | Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.)
Search your library for a creature card with mana value X or less, put it onto the battlefield, then shuffle. | Karl Kopinski

Hornet Nest | Creature | Insect | Defender (This creature can't attack.)
Whenever Hornet Nest is dealt damage, create that many 1/1 green Insect creature tokens with flying and deathtouch. (Any amount of damage a creature with deathtouch deals to a creature is enough to destroy it.) | Adam Paquette

Yisan, the Wanderer Bard | Legendary Creature | Human Rogue Bard | {2}{G}, {T}, Put a verse counter on Yisan, the Wanderer Bard: Search your library for a creature card with mana value equal to the number of verse counters on Yisan, put it onto the battlefield, then shuffle. | Chase Stone