I’ve been thinking about this for a while now. What would happen if a Viltrumite donated blood to someone? Would that person then develop Viltrumite powers? Or would they die due to the blood not being human or not matching the blood type? Since Viltrumite blood is so pure and compatible, the human would slowly but surely become a Vilturmite.
Couldn’t you just beat up a Viltrumite somehow and collect the blood that was dropped. Like it won’t be infected if it’s in a clean and safe environment. You would need to capture one for this however.