Exploit Glyph

Glyphs like Exploit Glyph can be placed into Paragon Boards to add bonuses to your skills. These are stored virtually and not in your inventory and can be levelled up to further improve them.

The Glyph Guide has all the details.

Exploit Glyph

Class: Rogue, Spiritborn

Radius: 3

Bonus: For every 5 Strength purchased within range, you deal +2.0% increased damage to Vulnerable targets.

Additional Bonus:

When an enemy is damaged by you, they become Vulnerable for 3 seconds. This cannot happen more than once every 20 seconds per enemy.
Required (purchased in range): +25 Strength