Perhaps you will be interested
Trial of Valor is a raid, when you have to defeat three bosses, to get the same-name achievement. The first boss is Odyn (Halls of Vallor), then you will have to face with Helya’s forces and to storm through the portal to Hellheim, when you need to kill the savage beast Guarm. Here you can buy "Trial of Valor achievements compilation" for EU or US Servers. Also you'll get guide for completing "Trial of Valor achievements compilation" and can help your friends with these hard quests.
It is a rather harder that it may seem, and we are there for you to do your game process easier.