Who should I evolve into a 4*?

[Hypnos]

So after countless hours of grinding, I've finally coughed up the requirements for a 4* upgrade on either one of two characters; Mummy Eddie or Soulless Demon.My highest character is a 4* lvl 80 rocket dog. Question is which one?

[Vaseodin]

Mummy Eddie for sure if you plan on using him a lot. He can be pretty well balanced if built properly.

[Jennie-5128]

I'd go for the demon of those two

[Nightowl]

If Mummy Eddie is your main, and you plan on using him a lot, definitely go with him...it's a simple choice really...if Eddie dies, everybody dies, so make your main Eddie as strong as possible

[Flann]

As Nightowl suggested, I would go with Eddie, even if it isn't your favorite. I was extremely fortunate to have a 5* Vision Eddie drop on my very first day! And no I'm not a founder. He alone dragged the rest of my crew through the middle levels rather effectively. Higher levels drop better Evo shards.