Originally posted by The Nuul
SD cant really hurt him. Colossus is way to durable and strong. Prob the better fighter also.
He can definitely hurt him. SD has fought plenty of bricks with high durability, and Colossus has been knocked-out by blunt-trauma often enough. SD is not a light-weight.
As far as fighting skills, that's a toss-up.
Dragon is considerably faster and more agile. I think he would land more shots, and his durability and healing is enough to keep him in the fight.
Colossus could pull out a majority, but it wouldn't be an easy fight, and definitely not 10/10. I personally see it as a pretty even fight.