Streets of New Capenna

Undercover Operative | Creature | Shapeshifter Rogue | You may have Undercover Operative enter the battlefield as a copy of any creature on the battlefield, except it enters with a shield counter on it if you control that creature. (If it would be dealt damage or destroyed, remove a shield counter from it instead.) | Tyler Walpole

Reservoir Kraken | Creature | Kraken | Trample, ward {2} At the beginning of each combat, if Reservoir Kraken is untapped, any opponent may tap an untapped creature they control. If they do, tap Reservoir Kraken and create a 1/1 blue Fish creature token with "This creature can't be blocked." | Nicholas Gregory

Jaxis, the Troublemaker | Legendary Creature | Human Warrior | {R}, {T}, Discard a card: Create a token that's a copy of another target creature you control. It gains haste and "When this creature dies, draw a card." Sacrifice it at the beginning of the next end step. Activate only as a sorcery. Blitz {1}{R} (If you cast this spell for its blitz cost, it gains haste and "When this creature dies, draw a card." Sacrifice it at the beginning of the next end step.) | Zoltan Boros

Obscura Interceptor | Creature | Cephalid Wizard | Flash Lifelink When Obscura Interceptor enters the battlefield, it connives. When it connives this way, return up to one target spell to its owner's hand. (To have a creature connive, draw a card, then discard a card. If you discarded a nonland card, put a +1/+1 counter on that creature.) | Jason A. Engle

Fleetfoot Dancer | Creature | Elf Druid | Trample, lifelink, haste | Joshua Raphael

Ziatora's Envoy | Creature | Viashino Warrior | Trample Whenever Ziatora's Envoy deals combat damage to a player, look at the top card of your library. You may play a land from the top of your library or cast a spell with mana value less than or equal to the damage dealt from the top of your library without paying its mana cost. If you don't, put that card into your hand. Blitz {2}{B}{R}{G} | Tuan Duong Chu

Ognis, the Dragon's Lash | Legendary Creature | Viashino Warrior | Haste Whenever a creature you control with haste attacks, create a tapped Treasure token. | Andreas Zafiratos