Greater Mark of Making
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 Artisan’s Intuition benefit of your Mark of Making feat, you can roll dice:1d6|noform|noparens|avg (1d6) instead of dice:1d4|noform|noparens|avg (1d4).
Improved Making. When you use the Spellsmith benefit of your Mark of Making feat to cast Magic Weapon without a spell slot, you cast the spell as its level 3 version.