Talk:Twilight's Kingdom - Part 1/@comment-33425320-20180217190103/@comment-4637931-20181208081407

I think it's basically the temptation for power. Discord wasn't 100% good (still isn't as of season 8 if you ask me but I'll admit, he's working on it) at the time so it probably wasn't that hard for Tirek to persuade Discord to abandon everyone and join him. It's bascially like high school when the cool kids invite the shy and awkward kids to join them and tell them to do bad stuff if they wanna be a permanent part of their group except *impression of Maude when describing the Camouflage game* waaaay more intense.