Body of Knowledge

You tattoo your body to maintain your spell knowledge, granting you the following benefits:

• Increase your Intelligence score by 1, to a maximum of 20.
• You gain proficiency with Calligrapher's Supplies.
• You can use your body as a spellbook that contains a number of spells up to your Intelligence score. To tattoo a spell onto your body, you must have Calligrapher's Supplies available, and for each level of the spell you copy, the process takes 4 hours and costs 100 gp. The cost represents material components you expend as you experiment with the spell to master it, as well as the fine inks you need to record it. Once you have spent this time and money, you can prepare the spell just like your other spells.
• When you finish a long rest, you can choose a number of spells up to your Intelligence modifier (minumum of 0) that you have tattooed on you. You know those spells, and preparing those spells doesn't count toward the maximum number of spells that you can prepare each day. You can change the list of known spells when you finish a long rest.
• You can use your body as an arcane focus to cast spells that are tattooed on you.