
Mendicant Core, Guidelight | Legendary Artifact Creature | Robot | Mendicant Core's power is equal to the number of artifacts you control.
Start your engines! (If you have no speed, it starts at 1. It increases once on each of your turns when an opponent loses life. Max speed is 4.)
Max speed — Whenever you cast an artifact spell, you may pay {1}. If you do, copy it. (The copy becomes a token.) | Zezhou Chen

Zahur, Glory's Past | Legendary Creature | Zombie Cat Warrior | Start your engines! (If you have no speed, it starts at 1. It increases once on each of your turns when an opponent loses life. Max speed is 4.)
Sacrifice another creature: Surveil 1. Activate only once each turn.
Max speed — Whenever a nontoken creature you control dies, create a tapped 2/2 black Zombie creature token. | Leroy Steinmann

Kolodin, Triumph Caster | Legendary Creature | Human Pilot | Mounts and Vehicles you control have haste.
Whenever a Mount you control enters, it becomes saddled until end of turn.
Whenever a Vehicle you control enters, it becomes an artifact creature until end of turn. | Michal Ivan

Winter, Cursed Rider | Legendary Creature | Human Warlock | Ward—Pay 2 life.
Artifacts you control have "Ward—Pay 2 life."
Exhaust — {2}{U}{B}, {T}, Exile X artifact cards from your graveyard: Each other nonartifact creature gets -X/-X until end of turn. (Activate each exhaust ability only once.) | Daren Bader

Sita Varma, Masked Racer | Legendary Creature | Human Rogue | Exhaust — {X}{G}{G}{U}: Put X +1/+1 counters on Sita Varma. Then you may have the base power and toughness of each other creature you control become equal to Sita Varma's power until end of turn. (Activate each exhaust ability only once.) | Kai Carpenter

Redshift, Rocketeer Chief | Legendary Creature | Goblin Pilot | Vigilance
{T}: Add X mana of any one color, where X is Redshift's power. Spend this mana only to activate abilities.
Exhaust — {10}{R}{G}: Put any number of permanent cards from your hand onto the battlefield. (Activate each exhaust ability only once.) | Wayne Reynolds