Streets of New Capenna

Civil Servant | Creature | Cat Citizen | Whenever Civil Servant attacks, you may tap another untapped Citizen you control. If you do, Civil Servant gets +1/+0 and gains lifelink until end of turn. | Tony Foti

Snooping Newsie | Creature | Human Rogue | When Snooping Newsie enters the battlefield, mill two cards. (Put the top two cards of your library into your graveyard.) As long as there are five or more mana values among cards in your graveyard, Snooping Newsie gets +1/+1 and has lifelink. | E. M. Gist

Body Dropper | Creature | Devil Warrior | Whenever you sacrifice another creature, put a +1/+1 counter on Body Dropper. {B}{R}, Sacrifice another creature: Body Dropper gains menace until end of turn. (It can't be blocked except by two or more creatures.) | Jakub Kasper

Jetmir's Fixer | Creature | Cat Warrior | {R}{G}: Jetmir's Fixer gets +1/+1 until end of turn. If mana from a Treasure was spent to activate this ability, put a +1/+1 counter on Jetmir's Fixer instead. | John Thacker