C-Support
Henry: Hey-o, Link! It's a nice night out, huh?
Link: ...Henry?... What are you doing up so late?
Henry: Oh, nothin' much! I enjoy the spooky, dark atmosphere of night time, so I like to just walk around. Then I saw you! Mind if we hang out?
Link: ...Uh, all right... If you really want to...
Henry: So what's with the creepy mask? Is that supposed to be one of those sleeping masks that Maribelle wears to 'maintain her beauty' or whatever? Nya ha! Yours looks waaay cooler!
Link: ...Oh, that's right... I forgot I had this thing on... No, it's the opposite, actually... This is called the All-Night Mask. When I wear it, I no longer fall asleep... It's perfect for keeping watch overnight... I don't need to use it as much now that I'm travelling in a group, but... It still has its uses.
Henry: Woah-hoh! A mask can do that?! It must be imbued with some powerful magic to make that possible, right?
Link: I'm... not sure. I have dozens of masks, and each one grants me some sort of special ability. I never really took the time to wonder why, though...
Henry: Did you steal them from a dark mage like me? Maybe they've all been cursed, and that's why they're so special! Wouldn't that be neat?!
Link: I just bought them from a salesman... Now that I think about it... you remind me a lot of him...
Henry: Do you have a mask that makes your blood change colors? Oh, maybe there's one that makes your enemies explode when you kill them!
Link: ...N-No... I don't have any masks like that.
Henry: Aw... Well, what masks do you have?
Link: Most of them don't do anything crazy... Like this one, the Mask of Truth... Back in Hyrule, there were stones that would share secrets with me if I was wearing this... I haven't found a use for it in this world, however.
Henry: What?! You can talk to rocks?! That's hilarious!
Link: ...W-Well... only a specific kind of rock... but yeah, I guess I can...
Henry: Nya ha ha! And people call me weird for talking to flowers! Talking to rocks? That's an ability that you shouldn't take for granite! Hah!
Link: ...Heh... I guess we're all strange in own ways.
Henry: All right, what else ya got?
Link: This is the Mask of Stone... It's not the most pleasant-looking thing, but it's actually pretty useful... Whenever I wear it, I become much harder to detect... It's great for tasks that require a stealthy approach.
Henry: Oh, neat! You should show that one to Kellam! You two would fit right it!
Link: And this one is called the Bremen Mask... When I wear it, animals start to trust me... So much so that they'll follow me around, and even fight with me in battle if they think I need the help.
Henry: Hey, I have a real, strong bond with animals, too! That's why the crows always follow me around, y'see. We're thick as thieves!
Link: ...You say that you can communicate with animals, right?... You can actually talk to them?
Henry: Right-o! Animals are some of my closest friends. They're way more loyal than humans. You can trust 'em with anything! If that mask can make them all buddy-buddy with you, then you gotta hold onto to it. That's one of the best powers you can have!
Link: ...I'll take your word for it.
Henry: Onto the next mask! Keep 'em coming, buddy!
B-Support
Henry: Evenin', Link!
Link: ...Hey, Henry... Seems you've caught me on watch-duty again.
Henry: Yep! Once I found out that it was your turn, I came lookin' for ya. We had such a fun talk last time, I just had to.
Link: ...You enjoyed it that much?... I didn't think another person would find my masks that interesting... Most people just think they're ugly looking...
Henry: Aw, heck no! They're totally awesome! I was hoping you could show me some more of them tonight, too.
Link: ...Sure... Let me see if there's any you haven't already seen...
Henry: Actually, I have a request. I wanna see that mask that turned you into a small, plant guy!
Link: ...Small, plant guy?... Oh... You mean this...
Henry: That's the one! Why didn't you show it to me last time? Are you keeping all the coolest masks a secret? That's a big letdown, y'know...
Link: I didn't show it to you because I... don't care much for masks like this one.
Henry: You 'don't care for it'? What's that supposed to mean?
Link: ...I have a few masks that are... unlike the usual ones... The moment I wear one, my body is transformed into a completely different type of being... The one you saw is called a deku scrub, a plant-type creature from the forests of Hyrule.
Henry: So you can morph yourself into weird monsters? Anytime you want? That sounds super cool! Why don't you think so?
Link: Because... it's very uncomfortable... I just don't like the feeling of not being... myself.
Henry: Huh... Well, okay... There was this one time when I used a hex to switch bodies with Sumia! I thought it was a great time, but she wasn't so thrilled about it. I guess most people don't enjoy the wonders of messing around in a new body like I do!
Link: ...The abilities that these different forms grant me are extremely useful to have, I'll say that. As a deku scrub, I'm able to hop along surface water... In an earlier battle against a Valmese fleet, I used that ability to board an enemy ship, and create an opening for Robin to launch their full attack.
Henry: See? It's a good thing, Link!
Link: ...It is... Still, these transformations aren't toys that I'll show off for fun... I'll use them when I need to, and that's all.
Henry: Say, what's up with these masks? How'd someone give them this transformative power, anyway? I'd like to meet this salesman and learn the tricks of the trade. Maybe I could make my own mask that turns me into a wolf or a giant bird!
Link: ...Just like before, I didn't ask any questions... He did tell me, though, that spirits from the deceased live on in these three masks... I figured he was just making up silly rumors and stories to sucker people into buying them... but maybe he was serious...
Henry: Oooh! When your body changes, do you have memories that aren't your own? If you try hard enough, I bet you could envision the spirit's final moments before they died a gruesome, gnarly death!
Link: ...No, I've only ever had my own memories.
Henry: Oh, but what if the spirits possess you while you're in their bodies? I bet the regretful soul that lives in the mask would be real happy to live on through you!
Link: ...Even in a transformed state, I've always had full control over my actions... I think that theory is unlikely.
Henry: Aw shucks... So what about the other ones? What else can you transform into? A risen? A wyvern? A taguel?
Link: ...Nothing from this world... One of them turns me into a Goron, which is also a race from Hyrule. In that form, my strength easily outmatches even Vaike's, and I'm able to roll around like a rock.
Henry: Nya ha! First you can talk to rocks, now you're turning into rocks!
Link: The final mask turns me into one of the Zoras, a tribe from Hyrule that excels in underwater combat... A mix between me and a fish, I suppose.
Henry: You can turn into a fish, but you aren't gonna let me see it?!
Link: ...No means no, Henry... If you want to see me transform again so bad, you'll just have to see it happen on the battlefield.
Henry: Aye aye, captain! I'll keep watch on you every time we fight together. I won't miss out on seeing you turn into a fish!
A-Support
Henry: Link! There you are!
Link: ...Henry?
Henry: I knew that you weren't scheduled to guard the camp tonight, so I was looking all over for you. Funny enough, I still found you out here in the dark! You're allowed to sleep tonight, you know.
Link: ...Yeah, I know... I just wanted to relax in the nighttime air... I went all out in that final attack, and I need some time to... unwind...
Henry: No kidding! That's exactly what I wanted to talk to you about! So, what was that? You told me all about your morphing mask mumbo-jumbo, but you never mentioned a transformation like that!
Link: ...Even compared to the other three... That mask is one that I don't let other people know about... It's frightening... It grants me more strength than one man should have, if I'm being honest...
Henry: But you used it!
Link: ...Yeah... I certainly didn't want to... but going up against Walhart? The 'Conqueror' himself?... We all know how Basilio fared against him... And with our entire cause on the line, I had to do everything I could... I just felt it was necessary.
Henry: Heck, that seemed pretty unnecessary to me. You cooked that giant lobster! If I'da known you had that kind of power, I would'a just stayed at camp! Nya ha!
Link: ...I'm just relieved that it all worked out... With my other forms, I have full control over my actions, just as I told you before... But with that one?... It feels like I'm... overcome with power... It's a type of euphoria that feels like it could spiral out of control if I don't keep it in check...
Henry: That neat an' all, but you haven't answered my question. What is it? You looked pretty similar to your normal self, but... you were taller, and you had a crazy lookin' sword!
Link: ...The 'Fierce Deity's Mask'... At least that's what the merchant called it.
Henry: Wooooah! That means the spirit of a god is trapped in your mask! You can call upon the power of a god whenever you need to!
Link: If I take the mask seller at his word, maybe... Can a deity even die, anyway? If they could, I'd imagine it's not easy to trap the soul of one inside a mask, either.
Henry: Well, think about Chrom's time travelling kid! According to her, Naga was killed by Grima in that desolate future she came from. That means it's possible, right?!
Link: ...I guess so?...
Henry: Welp... It's settled! You have the power of a god at your disposal, Link! How cool is that?
Link: If that's what being a god feels like, then I'm not interested... It always feels like I'm about to lose control.
Henry: Aw, c'mon! Don't give up on it yet! I bet you just need time to get used to your godly powers, that's all.
Link: ...Why are you so invested in this? Does it really matter?
Henry: 'Cause imagine all the destruction you could dish out! You'd be able to kill off entire enemy armies while I sit back and watch from a front-row seat! Ohhh, just imagine the carnage...
Link: No... No thanks... I'll be happy if I never feel the need to use that mask again.
Henry: *sigh* fine, fine... I got to see your powers in action once, at least. You ran straight up to the conqueror and used some ancient triangle magic on him! You didn't even let 'em finish his monologue about destiny and freedom and pebbles. I saw you dash around him going all pshew, pshew, pshew! The look on his face when you blasted him with that light attack? Priceless! Nya ha ha!
Link: I'm sure that battle will be the talk of the camp for a good while... and I'll probably have to give this same explanation many more times...
Henry: You sure will! No one had a clue how you did any of that!
Link: If the Shepherds thought I was strange before this, they'll probably just find me disturbing after seeing that display.
Henry: Oh, without a doubt! But you can't blame them. You're the weirdest person I've ever met! You're a world-travelling, time-travelling, overly-altruistic swordsman with godly powers at their disposal.
Link: ...Overly-altruistic?
Henry: Heck yeah! You see that full moon in the sky? You're so weirdly helpful, I bet you'd try to stop it from falling if it was about to crush Ylisse like a pancake!
Link: ...Heh... Yeah, probably.
Henry: And don't forget... You talk to rocks! Alongside me, the guy who talks to plants and animals? We make a great team! I'm really gonna miss you and all your wacky stories when you go back home.
Link: ...I'll miss you too, Henry.
A/N:
In this story, Link purchases all of these masks from the Happy Mask Salesman in Hyrule as opposed to using the Song of Healing to obtain them in Termina. As I said in the prologue, I've never played Majora's Mask, and the version of Link in my story hasn't experienced the events of that game. Still, including the masks from MM was something I couldn't resist doing. My story doesn't follow the proper events of how he got those masks (obviously), but this is really just a self-indulgent fic that I'm writing mostly for myself at the end of the day. Fun ideas and concepts will sometimes take precedence over canon events.
For Fierce Deity Link's showdown against Walhart, I envisioned him using one of his attacks from Hyrule Warriors (Young Link's C6 to be exact) where he zips around the ground, creating a giant triforce, and then launches enemies into the air with a giant pillar of light.