Hi, I think it would be cool to add a vehicle golem. He can follow you in his normal mode and help you with fighting but he is also able to transform into a vehicle like a bike or a mechanical horse, helping you traverse the ground.
Could be upgradable to an ender dragon version that leaves a trail of dragon breath when driving

Hey thanks for your suggestion! We have something similar in mind for the next version of the mod. We'll consider your suggestion though!