This looks great, but I have two comments:
Firstly, I feel that the level 6 ability is potentially far too strong in many scenarios. As it is, you could potentially imbue all of your party's weaponry, or even a pile of daggers, before the fight begins. Perhaps there should be a limitation to the number of objects you can imbue simultaneously? Perhaps adding the word "once" before "during a short or long Rest"?
Secondly, I think the 10th level ability is weirdly specific and lacking "bang". Contrary to the level 7 entry, this one is often not going to be helpful at all. Perhaps a mirrored version of the level 7 feature for buff spells targeting armors? Perhaps offensive spells that trigger "when touched by another creature"? This would allow your Enscriber to do nasty things to doors, not just armors. 