Armory Apprentice

You have trained to understand the fundamentals of most armor and how to properly care for it, you gain the following benefits:

• You gain proficiency with an armor type of your choice.
• You gain proficiency in either Leatherworker's Tools or Smith's Tools.
• During a long rest you take two hours tending to your armor. Make either a DC 13 Leatherworker's Tools (for Light & Medium armor) or a Smith's Tools (for Heavy armor) check. On a success you gain a number of temporary hit points equal to 5 + your Intelligence modifier. These temporary hit point reset at the start of your next short or long rest.