Olvah, Autosoul Smith

As this spell resolves, create a colourless Aura enchantment token named Autosoul with enchant creature or Vehicle, and has "Enchanted creature
has haste" and "Artifact creatures you control get
+1/+1." Attach it to this card as it enters.
Splice onto Vehicle {r}{r/w}{w} (You may reveal this
card from your hand as you cast a Vehicle spell. If
you do, that spell gains the text of this card's rules
text and you pay {r}{r/w}{w} as an additional cost to
cast that spell.)