While attuned to this ring, the number rolled required to score a critical hit with weapon and spell attacks is reduced by 1. This stacks with other such effects.

Marked for Death - Once per long rest, as a bonus action, you may mark a target with a glowing skull sigil. The next attack made against the target within the next minute has advantage, consuming the mark regardless of whether the attack hits or not. From the moment that you cast the mark, until it has been consumed, your eyes glow red with murderous intent. 

A sinister piece of jewelry, crafted from a dark, almost liquid-like metal that seems to absorb light. The signet features the symbol of Bhaal - a skull surrounded by droplets of blood. The inside of the band is inscribed with ancient runes that pulse faintly with a crimson glow. The ring exudes an ominous aura, making those around the wearer feel uneasy. It's said to be a token of favor from Bhaal himself, given to his most devout and skilled assassins. Wearing it is not only a sign of deadly prowess but also an act of devotion to the Lord of Murder. The ring's abilities make it a prized possession for those who lurk in the shadows, awaiting the perfect moment to strike.

Notes: an Unholy Assassin of Bhaal