Most of the raid teams that got their First Tarragrue kill in July were a group item of level of around 229 with lower conduits(213-226) and renown (40 ish) . The guilds killing it now for the first time have killed this many times on Heroic and have item levels in the low 240s. It is a fun fight on Mythic the first time you kill it. So, give it a shot and have some fun ! If you do not have 20 raiders ask antoher smaller raid team to team up with your from this massive connected realm of 8 servers … also and do not let people take troll powers that wipe the group …