Though this is a long video (and not mine, btw) take a few minutes to witness FF14’s version of a battle with one of the most fiendish fiends in the FF multiverse, Shinryu! Aside from being a pretty difficult battle, the accompanying music, entitled “The Worms Tail” is fantastic!
A little trivia for you: When the battle first released after the expansion “Stormblood” hit the scene many people complained about its difficulty! I don’t think the devs nerf’d it, but I might be wrong. Aside from this battle, which you are required to play through to finish the story, there is an “Extreme Mode” battle that really cranks it up to high gear. Not for the faint of heart.