Rakanoth's Wake is a Unique Boots. It can be used by any class.
Rakanoth's Wake Unique Boots, introduced in Season 5 Patch 1.5.0, offer a compelling mix of stats for various character builds. These boots reduce evade cooldown by 1.5 seconds, boost movement speed by 18%, and increase non-physical damage by 57-75%, making them ideal for characters focused on elemental damage like fire, ice, or lightning. Additionally, they provide a significant 35% resistance to all elements and 8% cooldown reduction, enhancing survivability and skill rotation.
The boots' unique effect triggers a fiery explosion upon using a cooldown ability, dealing up to 12,030 fire damage, which can be scaled with other fire-related modifiers. While these boots are particularly useful for classes struggling with resistances or those focusing on fire damage, they might not be optimal for endgame builds. However, they remain a versatile and powerful choice during the leveling phase, especially for Barbarians, Rogues, and Druids.
Effect
When you cast a Skill with a Cooldown, you explode, dealing X Fire damage.
How to get Rakanoth's Wake
You can farm this unique from 
the Fell Council
Tread carefully on the plains of Hell, for each step sunders the soul and shatters the mind.
Legions
Helltide