Quote Originally Posted by Goji1639 View Post
Oh, so long castbar is the games telegraph for a 360 degree 1 hit kill AoE that's avoidable if you run a specific distance from the boss? My mistake then; I'll remember that the next time I see a long castbar on anything.

Attacks need telegraphs if you're required to avoid them to survive. A long cast bar doesn't tell you anything about what you need to do.
Here's a crazy thought but have you ever thought of, you know, asking about mechanics from your party? It's something that a massive MULTIPLAYER game is meant to encourage.