Greater Mark of Healing
Source: Eberron: Forge of the Artificer p. 44
Prerequisite: 4th
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 Medical Intuition benefit of your Mark of Healing feat, you can roll dice:1d6|noform|noparens|avg (1d6) instead of dice:1d4|noform|noparens|avg (1d4).
Improved Healing. You can now use the Healing Touch benefit of your Mark of Healing feat to cast Cure Wounds without using a spell slot a number of times equal to your Proficiency Bonus, and you regain all expended uses when you finish a Long Rest. Additionally, when you cast Cure Wounds and roll dice to determine the number of Hit Points restored, you can treat any 1 or 2 on a roll as a 3.