you used a fair bit from destiny it seems XD oh and with what i mentioned of the bag and the background noise of the dog pole on the mage it wouldn't be hard for my character to draw a weapon out of the bag either silently or quiet enough to not be noticed. 

since his method of retrieving the weapons is a shadow pulling it out of the pocket dimension he can skip having to open the bag and removing the sheath, leaving the only challenge as not hitting the zipper of the bag on the way out. a feat that with the practice he would have wouldn't be all that hard by holding it open with one hand and drawing the sword with his tail.

however i left all that out through a mix of forgetting it wasn't already explained and not wanting to make it too hard for you to justify a reaction from your character without mine hitting it first