Horizons was formed in May 2007 and had been raiding for 4 years on Jaedenar-EU before transferring to The Maelstrom-EU in the summer of 2011. We have a stable core with quite a few members having been around since the very beginning of the guild. This has helped us in keeping good and steady progress throughout the years. While Horizons had been a 25-man raiding guild since its inception in TBC, we shifted our focus to being a 10-man raiding guild in Mists of Pandaria. As of Warlords of Draenor, we are a 20-man raiding guild. Our main focus, alongside Mythic progress, is to maintain a calm raiding atmosphere.
Like any end tier boss, Gul'dan was a step up in difficulty when it comes to... well, everything: damage requirement, healing needed and raid coordination. It was an encounter that didn't disappoint in the slightest.
Elisande was an interesting encounter. Not so many changes from the heroic version of the fight, but it was definitely a step up in difficulty. As every other fight in mythic, everything hurts more and that includes the rings, especially pre-nerf. Other than the rings mechanic, the adds had to die at the right time and the singularity had to placed in the right location.