After consideration, you figure that Henry is right. As you intend to learn magic, you figure that it would be rather counterproductive to have to take time to learn how to adapt the stances that you 'remember' for several different kinds of weapons to your body, given the time it would take. No, it would be better to get one kind of weapon, and one you can grow into, especially given the large span of time that you'll have to grow, given the rather long life-span of dragons.
So, you follow Henry to a room with several weapons to choose from, while you're still thinking about which kind exactly you're going to choose. Given that it is right next to the gymnasium-like room that you were already in, it wasn't much of a walk. Henry throws the doors open, quite literally, as he sends them open forcefully with a blast of magic. Inside is an assortment of mostly organized weapons, with staves, bows, daggers, longswords, and shortswords all lined up on racks and shelves along and on the walls, respectively. The weapons not stored were just that, and remained littered upon the floor in an unorganized mess, though some appear to have even been shoved into a pile. It really takes away from the general feel of awe that the organized, ornate weapons would have given off, otherwise. Stepping inside, you begin shuffling through the room, careful not to injure yourself on the weapons on the floor. You disturb and replace several of the weapons on the wall, taking a a few thick staff, a couple of especially long longswords, and even try to pick up a greatsword that looked to be longer than you are tall.
You step back and look over the room, sighing. Seconds away from asking for advice from Henry, a glinting handle, sticking out from the aforementioned pile, catches your attention. The handle itself looks rather ornate, too ornate to fit in with the rest of the weapons in the room. Yor move over to it and get a closer look at the blade as you slide it out of the pile. The handle has a ring made out of a gold-look-alike material around the top of it, with spikes pointing up from it. Were it not in a rectangle shape and leading up into a blade, you figure that it would resemble a crown. The blade itself is long and wide, obviously crafted to be used in two hands. Taking it out of it's sheath, you begin handling it. You're quite clumsy with it, given that you're brain is telling you to move it with arms much bigger than yours, but you manage to not look like a complete idiot in front of your new mentor with it. You take note that despite it's girth, the blade itself is surprisingly thin, along with two sided, symetrical, and engraved in symbols that you, surprisingly, don't even recognize.
Henry, who has somehow managed to fall asleep while leaning against an empty spot on the wall, still with the same grin, wakes up upon your approaching him. "Hm? Oh, that's the one you want? Heh, alrighty. Really won't be a big deal, in the long run. Given that magic will be your real weapon, what you've got there will be more of a means to an end. Chances are, you'll eventually find something that you work better with, but you won't want to continuously replace it, given how your weapons will get stronger the longer you use them, as they'll become more attuned to your magic the more magic that you channel through them... Waitaminute." He leans in forwards, and you would guess that he would be squinting at your weapon were his eyes not already performing that task. "Isn't that... Yeah! It is! That's so cool! What you've got there is a sword that was made as both an alternative for and replica-ish sword for our own king. He sort of decided that he prefered his old one and didn't like how it was being copied, so he up and threw that one out. Wonder how it ended up here... Meh, who cares! You've got it now!"
He goes and skips, or, atleast you guess that it's skipping that he's doing under his robe, back into the large, open room that you came from. But, he then turns back around to you, and opens up his robe, reavealing an almost pitch black vest underneath it. The robe itself has several pockets inside of it, each of which containing a book of some sort. Given the bulky size and number of the books, you're quite surprised that they weren't visible from the outside. he ends up surprising you by taking out one of the books and tossing it into the air before doing tne same with four more books. He catches each, tossing them up one after another - it dawns on, and amazes, you that he's juggling them, about at this point - and after a moment of repeating this for a few more cycles of gravity and tossing, he looks down from his activity and to you. "These here are my 'weapons', if you want to call them that. Given how much I like to read, I ended up casting several spells while I was cramming in information from my favorite book. Eventually, it got attuned to my magic. However, this effect can be forced, so why don't you go ahead and try it out?"