Terrifying Roar is a buff that makes your controlling effects last longer. Enemies in 5 meter range become weaker for 7 seconds. The caster can also resist debuffs better and the duration of debuffs on caster decreases. Though Terrifying Roar doesn’t deal direct damage to enemies it will help you a lot by making you stronger and by increasing duration of your controlling effects.
Don’t forget that heavy armor set also reduces stun and immobilizing duration. Thus a player may receive a very good protection in total.
Terrifying Roar doesn't have any combos.