The Opportunist's Aspect is an Offensive Aspect. It can be imprinted on Gloves, Offhands, 1H Weapons, 2H Weapons, Rings and Amulets. It can only be used by Rogues.
Effect
When you enter or break Stealth, you drop a cluster of exploding Stun Grenades around you that deal 1 total Physical damage and Stun enemies for 1 second. Your Stun Grenades deal [25 - 45]% increased damage.
How to get Opportunist's Aspect
The Opportunist's Aspect can be unlocked in your Codex from

The fastest way to get the Opportunist's Aspect is to gamble 1H Weapons on a Rogue.
The best way to get Aspects is to gamble your

