Greater Mark of Detection

Source: Eberron: Forge of the Artificer

General Feat (Prerequisite: Level 4+, Mark of Detection feat)

You gain the following benefits.

Ability Score Increase
Increase one ability score of your choice by 1, to a maximum of 20.

Improved Intuition
When you use the Deductive Intuition benefit of your Mark of Detection feat, you can roll 1d6 instead of 1d4.

Shared Detection
When you use the Magical Detection benefit of your Mark of Detection feat to cast See Invisibility without a spell slot, you can choose one creature you can see within 30 feet of yourself. That creature also gains the benefits of the spell for its duration.