RAW, can you break up turns between a rider and their controlled mount?

Can’t seem to find clarification on this, it always just directs me to the Mounted Combat rule.

Mounted Combat
[…] The initiative of a controlled mount changes to match yours when you mount it. It moves as you direct it, and it has only three action options: Dash, Disengage, and Dodge. A controlled mount can move and act even on the turn that you mount it. […]

Rules as written, can a rider attack, have the mount take the Disengage action and move, and make another attack on the same turn?

How does the Hunter ranger’s Horde Breaker feature interact with the Mounted Combatant feat’s ability to redirect an attack to the rider?

Roger is a Hunter ranger that has chosen the Horde Breaker option for the Hunter’s Prey class feature (Player’s Handbook, p. 93):

Once on each of your turns when you make a weapon attack, you can make another attack with the same weapon against a different creature that is within 5 feet of the original target and within range of your weapon.

Roger fires an arrow at Michael, a creature with the Mounted Combatant feat who is currently astride a horse. Roger then uses the Horde Breaker feature to fire a second arrow at Michael’s mount. Michael uses the second bullet point of the Mounted Combatant feat (Player’s Handbook, p. 168) to change the target of Roger’s attack:

You can force an attack targeted at your mount to target you instead.

Does Michael get targeted by two attacks? Or is the second attack no longer permitted, because Michael is not a valid target for Roger’s Horde Breaker attack?

Does mounted combat require a willing rider as well as mount?

A party is traveling on a path through a woods when they are simultaneously attacked by a group of orcs and a single, overly-clever ogre. The ogre grabs the party’s fighter (successful grapple attack) and announces his intention to move 20 feet (speed halved) among the orcs, subjecting the fighter to multiple opportunity attacks as she leaves their reaches.

"Wait!" protests the fighter. "The opportunity attacks rule says…

You can make an opportunity Attack when a Hostile creature that you can see moves out of your reach…[but you] don’t provoke an opportunity Attack when you Teleport or when someone or something moves you without using your Movement, action, or Reaction.

"Since you are moving me, the orcs cannot attack me as you drag me past them."

"Hmmm…" considers the ogre. Knowing full well that specific beats general, he tries to think of a case in which something can explicitly provoke opportunity attacks even if it is being moved. "Aha!" he says brightly. "The grapple rules say…

When you move, you can drag or carry the Grappled creature with you

The ogre easily flips the fighter across his shoulders. "Now I am carrying you."

"That doesn’t matter."

"If I am carrying you, I can be your mount. And the mounted combat rules say…"

if the mount provokes an opportunity attack while you’re on it, the attacker can target you or the mount.

"That’s ridiculous," says the fighter indignantly. "First of all, you can’t provoke an attack of opportunity from the orcs unless you and they are Hostile, and clearly you are allies."

"You don’t know that," says the ogre. "We are actually from different tribes, and it was a coincidence that we both ambushed your party at the same time. If we win, I expect we will fall to fighting one another over your loot." The orcs nod in agreement. "Besides, the DMG definition of Hostile is…

A hostile creature opposes the adventurers and their goals but doesn’t necessarily attack them on sight.

"Setting aside the adventurer-centric language, as NPC’s these orcs and I oppose one another’s goals. As I move around, they could certainly choose to attack me rather than you."

"Point taken – but you still can’t be my mount."

"Why not? The Mounted Combat rules say…

A willing creature that is at least one size larger than you and that has an appropriate anatomy can serve as a mount, using the following rules…"

"I am a willing creature," says the ogre, "I am at least one size larger than you, and, as you will note from your position atop my shoulders, I have appropriate anatomy. It is still my combat turn, and I say that I am your mount."

"That’s not for you to decide! I mean, you can’t be my mount against my will! It says a creature can serve as a mount, and you are most definitely not serving me."

"There’s no game definition of serve."

"Right, so we go with the common English meaning of ‘being in service to’, ‘following commands’."

"I rather prefer the English meaning of ‘able to be used as’; like after the orcs kill you, your helmet will serve as my chamber pot."

The rules make it clear that to be a mount, the creature has to be willing. But does the rider have to be willing as well?

And if the rider does have to be willing, does that mean a rider that has been rendered unconscious no longer counts as a rider for the purposes of mounted combat? (an unconscious person on a moving horse could not receive opportunity attacks because they could no longer consent to be a rider?)

How can I dismount a rider?

What is the mechanism to dismount an opponent in mounted combat? What are the rolls?

The only rules for an “unseat” action I’ve found are the unseat feat, which enables a lance-wielding rider to get a free bullrush attempt against another rider. If successful, the other rider automatically falls off his mount and prone.

Does the Frog Rider ability of a Bullywug Royal work with Giant Toads?

The Ghosts of Saltmarsh WOTC Hardcover contains a few new statblocks, including the Bullywug Royal, who has the following trait :

Frog Rider. The royal has advantage on melee attacks made while riding a frog mount.

However, the Bullywug Royal is a Medium creature, meaning it needs to mount a Large or larger creature. The largest frog creature is the Giant Frog, which is Medium, thus cannot be mounted by the Royal. That being said, the Giant Toad is a Large creature, and the fluff text of Royals says :

A bullywug royal is often accompanied by and mounted astride a giant toad.

Thus, does a Bullywug Royal benefit from “Frog Rider” while riding a Giant Toad ?

Would it be better to target a rider or mount with a banishing arrow?

I’ve an arcane archer character who chose the banishing arrow feature.

In our campaign we often come across hobgoblins riding worgs.

If I wanted to really put a thorn in the side of the enemy, when the mount and rider are charging into combat, would it be better to target the rider or the mount with a banishing arrow?

Is one strategy optimal over the other?

Dragon Rider PRC question (DragonLance Campaign Setting)

Dragon Rider PRC (DragonLance)

Does the the bonus hit dice your dragon gains also apply to his age and/or size going up as well? IE: say a 17HD copper dragon (Large, Young Adult) get to apply his 8 bonus hit dice, does he then become a 25HD equivalent (Huge, Mature Adult, increased SR and caster level, etc)?

I wonder because some of the bonus feats in the PRC require you to be Huge size (Snatch) or a 10th level caster (Quicken Spell-Like Ability).

The section in the PRC does discuss the Bonus Hit Dice, but does not state if the age/size goes up or not. Also anyone know of any errata for the DragonLance Campaign Setting?

Is this homebrew Dragon Rider ranger archetype balanced? [Version 2]


Introduction

This is a follow up question to: Is this homebrew Dragon Rider ranger archetype balanced?

If you are not familiar with that question, I’d recommend reading it before this one, since this question won’t make much sense otherwise (and I don’t want to repeat loads of it here, since this post is long enough already).

From Weaveworker89’s answer to my previous question, I can see that the damage output of my previous version was too high, largely owing to the fact that the dragon companion can make its attacks using your bonus action, and that the dragon can start making two attacks/Multiattack after you reach level 11 (which also means that a Dragon Rider ranger would never use their bonus action for anything else ever again, which reflects bad design on my part).

Changes

The changes I plan on making are to adjust Draconic Bond from this:

You can use your bonus action to verbally command it to take the Attack, Dash, Disengage, Dodge or Help action.

to this:

You can use your action to verbally command it to take the Attack, Dash, Disengage, Dodge or Help action. Once you have the Extra Attack feature, you can make one weapon attack yourself when you command your dragon to take the Attack action.

Basically, the same as the RAW Beastmaster (PHB, p. 94). For the context of this question, assume that the Dragon Rider archetype from my previous question includes the above change (almost like “errata”, I guess).

Problem

However, I imagine the damage output will still be too high, even with this change, but I’m reluctant to drop the Draconic Fury feature (which is the same as the Beastmaster’s “Bestial Fury” feature). Instead, I’d rather take a look at weakening the dragon itself so that before and after reaching level 11 and getting Draconic Fury, it’s damage output is still within reason.

I’m happy enough with the damage output of the pseudodragon that you get between levels 3 and 6, it’s the wyrmling that you get between levels 7-14 and the young dragon you get at levels 15+ that I’m concerned with. I’m also generally happy enough with the rest of my archetype, which is why I’m focusing on the dragon’s CR as the thing to bring the damage output down, and therefore the whole archtype into balance.

Question

What CR wyrmling/young dragon stats should I pick such that the damage output (bearing in mind that it is not triggered from a bonus action anymore, but rather sacrifices one of your attacks) is on par with, say, a Gloom Stalker ranger? I’d like answers to consider the damage output of my archetype at levels 7-10 (Wyrmling, one attack), levels 11-14 (Wyrmling, two attacks) and 15+ (Young Dragon with Multiattack).

Note that, in my previous version, I outlined that each variation of wyrmling/young dragon are essentially all homoginised into the same CR creature, based on the stats of one specific dragon (i.e. a Blue Dragon Wyrmling and a Young Red Dragon), but with minor tweaks such as different elemental damage resistance, different breath weapon damage, and different speeds and other minor features such as Amphibious or Ice Walk, as befits the chosen dragon’s colour.

So what I’m really looking for is a specific statblock of a specific Wyrmling/Young Dragon (ideally chromatic, so that we don’t have to worry about extra breath weapons, but I can work with metallic dragon statblocks and just explicitly exclude any extra breath weapons), which I can then swap some elemental damage and speeds around to match the flavour of the chosen dragon colour, such that its damage output is balanced for this archetype.