Me: So discord since you'll be returning to ponyville in a couple of days how ya feeling?
Well i feel soothed and very happy now, my actions before were very unnecessary and unsophisticated so now once i return to ponyville i wish to SPREAD MORE CHAOS!!! uh i mean........tend to make amends for my horrible actions
Me: Uh......yeah well good for you ol' chap!
XD Great job on this, can't wait to see my #1 favorite MLP villain again ^_^
Just because you think Discord is the devil doesn't mean it is not logical character progression. There was noth established of him not turning good and their is still a chance for him NOT to become good anyway.
there is evidence that he is pure evil. he did nothing undeniable good in "Return of Harmony". if a writer wants to show that a villain isn't all bad, they have to make that clear from the very beginning.
It can be believable. You can't make a judgment from a first appearance. The next appearance expands on their character. Zuko from the last airbender showed no signs of being a good guy but he did eventually.
He does not know right from wrong, to him he was playing a game because that is all he knows.