I just got a Tirekcord Idea! since you founded the group, thought you'd want to hear it.
In season 6 (season 5 is too early)I wanna see Discord go to Tartarus and attempt to reform Tirek, in exchange for his freedom (Discord has to take away his ability to steal magic for safety). However, the mane 6 don't even attempt to trust Tirek, even Fluttershy begs Discord to send him back to his cage in fear of Discord getting hurt. Tirek returns the same attitude and pretty soon, Discord supervision is the only thing that's keeping Tirek from being sent back to his prison. As a week passes, Discord is the only one who supports Tirek, even though Tirek despises the idea of being reformed and refuses to change. Another week passes and a new threat arises to rule equestria (season finale). The mane six attempt to apprehend the foe, only to realize their rainbow power can fizzle, rendering them defensless. With the mane 6 defeated, Discord is the last line of defense for the nation, out of precaution, he brings Tirek as backup. Discord actually manages to push back the villain and is about to claim victory when the villain plays the ace up its sleeve and threatens the mane 6. Discord surrenders and the foe strikes him down and shuts down his Chaos magic. The villain then tries to take out Tirek, without his magic his useless, and fires a fatal blast towards the centaur. Discord, out of now where, shoves him out of the way, only to take the full force of the blast. Tirek, for the first time in centuries, feels remorse and lets out a roar of anger. He calls Discord his friend and attacks the villain in a blistering rage (here's a good idea of what'd look like
www.youtube.com/watch?v=0jLrec…) Tirek decimates the villain in a devastating attack and steals his magic and transfers it to Discord to save his life. Tirek is truly reformed and looks to Discord as the best friend he could ever hope for. I know its not a ship, but I'd love the writers to do this