0 cost cards mtg The 35 Best Free and 0-Mana Value in Magic Ranked Blue Instant Legal in Modern, Mana Cost:

Sydri, Galvanic Genius While not explicitly a vehicle commander, Sydri, Galvanic Geniuss first ability that animates artifacts sure looks like a way to have a fleet of self-driving vehicles

So why is it so expensive

And you don't know what they are dropping until it's in play, so you can't respond to their Avacyn, Angel of Hope by killing something before it gets indestructible

Scurry of Squirrels is also an easy way to activate Beastmaster Ascension or pump up Sword of the Squeak and Honored Dreyleader

When Fear of Abduction leaves the battlefield, put each card exiled with it into its owner's hand

2 Khenra Spellspear The likes of Monastery Swiftspear have already proven that prowess on low-mana cost creatures is a very good keyword