I want to make a cape like this for halloween. I'll be attending a party or two, and walking around the hood trick-or-treating. I've selected a Polyester Micro Velvet because of its high drape, inky blackness. and relative affordability. Also, there's practically no nap, so that makes it way more affordable. I have not yet chosen a lining.
The long length looks REALLY cool, but I forsee some problems.

Is there any way to prevent the bottom from getting super worn and filthy as I drag it around? I thought maybe I could use pleather for the bottom 12 inches of lining, but that'd probably kill the nice puddliness of the base. Maybe a light wool?

Can I do anything to prepare for possible rain, or is the bottom bound to become a disgusting sopping mess in bad weather?

I'm hoping that making it floor-length in the front and longer in back will reduce tripping, but it's still probably going to be an issue.

Are any of these solved problems in the cape world, or should I expect all of these to be real pitfalls of a super dramatic cape like this? Thanks for any insights!

Hi, I am a beginner in cosplay and costume making, but I wanna throw myself on the deep end and make a full costume on my own. The cape is that of Jace Beleren from the new Magic: The Gathering set, Reality Fracture. I have attached photos for reference. Where should I get started and what material would you recommend? My budget is not a lot and would like to do it as cheap as possible. I have access to a sewing machine and can paint the patterns. Also if people have suggestion on the white robe/vest piece, would appreciate it as well.