
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

Cartel Aristocrat | Creature | Human Advisor | Sacrifice another creature: Cartel Aristocrat gains protection from the color of your choice until end of turn. | James Ryman

Sin Collector | Creature | Human Cleric | When Sin Collector enters, target opponent reveals their hand. You choose an instant or sorcery card from it and exile that card. | Mike Bierek

Anax and Cymede | Legendary Creature | Human Soldier | First strike, vigilance
Heroic — Whenever you cast a spell that targets Anax and Cymede, creatures you control get +1/+1 and gain trample until end of turn. | Willian Murai

Tenth District Legionnaire | Creature | Human Soldier | Haste
Whenever you cast a spell that targets Tenth District Legionnaire, put a +1/+1 counter on Tenth District Legionnaire, then scry 1. | Victor Adame Minguez

Loxodon Smiter | Creature | Elephant Soldier | This spell can't be countered.
If a spell or ability an opponent controls causes you to discard Loxodon Smiter, put it onto the battlefield instead of putting it into your graveyard. | Ryan Barger

Dinrova Horror | Creature | Horror | When Dinrova Horror enters, return target permanent to its owner's hand, then that player discards a card. | Johann Bodin

Tomebound Lich | Creature | Zombie Wizard | Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)
Lifelink (Damage dealt by this creature also causes you to gain that much life.)
Whenever Tomebound Lich enters or deals combat damage to a player, draw a card, then discard a card. | Cristi Balanescu

Nightveil Specter | Creature | Specter | Flying
Whenever Nightveil Specter deals combat damage to a player, that player exiles the top card of their library.
You may play lands and cast spells from among cards exiled with Nightveil Specter. | Min Yum

Stormchaser Mage | Creature | Human Wizard | Flying, haste
Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.) | Clint Cearley

Frostburn Weird | Creature | Weird | {U/R}: Frostburn Weird gets +1/-1 until end of turn. | Mike Bierek

Kiora's Follower | Creature | Merfolk | {T}: Untap another target permanent. | Eric Deschamps

Bounding Krasis | Creature | Fish Lizard | Flash (You may cast this spell any time you could cast an instant.)
When Bounding Krasis enters, you may tap or untap target creature. | Jack Wang

Bloodtithe Harvester | Creature | Vampire | When Bloodtithe Harvester enters, create a Blood token. (It's an artifact with "{1}, {T}, Discard a card, Sacrifice this artifact: Draw a card.")
{T}, Sacrifice Bloodtithe Harvester: Target creature gets -X/-X until end of turn, where X is twice the number of Blood tokens you control. Activate only as a sorcery. | Lucas Graciano

Swift Warkite | Creature | Dragon | Flying
When Swift Warkite enters, you may put a creature card with mana value 3 or less from your hand or graveyard onto the battlefield. That creature gains haste. Return it to your hand at the beginning of the next end step. | Izzy

Nyx Weaver | Enchantment Creature | Spider | Reach
At the beginning of your upkeep, mill two cards. (Put the top two cards of your library into your graveyard.)
{1}{B}{G}, Exile Nyx Weaver: Return target card from your graveyard to your hand. | Jack Wang

Ghor-Clan Rampager | Creature | Beast | Trample
Bloodrush — {R}{G}, Discard Ghor-Clan Rampager: Target attacking creature gets +4/+4 and gains trample until end of turn. | Charles Urbach

Rubblebelt Raiders | Creature | Human Warrior | Whenever Rubblebelt Raiders attacks, put a +1/+1 counter on it for each attacking creature you control. | Chippy