Since someone answered what the DM should do and how he should think about the ranger's animal companion VS other, normal, beasts, let me tell you what I would do as a player since that's the actual question here.
I believe that a lot of the "fun of RP" (for lack of a better term) is up to the players. The DM is NOT the only one responsible for it, so there ...
No, for at least two reasons.
Crossbow Expert (PHB, p. 165) is very specific about when you can make an attack with your hand crossbow:
When you use the Attack action and attack with a one-handed weapon, you can use a bonus action to attack with a hand crossbow you are holding.
You are using a reaction to make a single attack; you are not taking the ...
No, you can not choose a swarm
The simplest argument is that the Ranger must choose a beast, singular, not a swarm of beasts, plural. Jeremy Crawford even supports this interpretation (although in this case referring to Wild Shaping druids.)
Natural vs unnatural
There are also additional arguments to be made against a swarm being a valid option.
Half-elf and half-orc are their own separate races.
In D&D 5e, the general principle is that a rule says what it says, and no more. Everything else is up to the DM.
The ranger's favored enemy states:
Alternatively, you can select two races of humanoid (such as gnolls and orcs) as favored enemies.
Since half-elf and half-orc are both humanoid races ...
No, you can't Grapple or Shove with Whirlwind Attack because of the wording.
Whirlwind Attack says you can use your action to make a melee attack, but that action is not the Attack action.
Grapple/Shove specifically says if you want to use it, you can use the Attack action to make a special melee attack.
As you're not taking the Attack action when you use ...
Not for the Beast Master Companion
The beast companion for that Ranger is granted by their class features. This makes it for all intents and purposes part of the Ranger (and included in their levels, as it were). In particular it uses their initiative and their actions to make attacks, meaning they are not an independent creature contributing to encounters. ...
Companion animals are like NPC's - they need personality as well as stats to shine.
When a player has an animal that's part of a class feature it's a character as much of the rest of the players - the flying cat won't be able to do much as the bard isn't trained to do anything with it, if anything it should act like a normal cat, sleep, run off, hide, etc.
Your eagle would effectively be mounting you
If your eagle lands on your shoulder, then so long as you are at least one size category larger than the eagle, the rules for mounts would come into play. To answer your questions directly, it wouldn't gain a bonus to AC, nor would you suffer a penalty to movement, but it would move with you on your turn without ...
Distant Strike is for Speed and Damage
By the time a Horizon Walker gains Distant Strike, the character already has Extra Attack, allowing two attacks per Attack action. A character can move between attacks, and there's nothing requiring all your attacks to be directed at a single target:
Moving between attacks
If you take an action that includes ...
Horde Breaker can work with green-flame blade, but not in the way you think it does
When you make a weapon attack, Horde Breaker lets you make another attack with the same weapon against a different target 5 feet from the first one, as stated in the quote. It does not let you cast a spell - all it lets you do is make an additional weapon attack.
Here is the list I came up with
hail of thorns
cordon of arrows
steel wind strike
I constructed this list by searching for all spells which are both Druid and Ranger spells ...
He could not have used Uncanny Dodge, but Evasion would have worked (if he had that feature).
You state that you modeled the effect of the Wish after the Meteor Swarm spell (presumably dealing cold damage, though). This is, in my opinion, definitely not overpowered, since both are 9th level spells, and you risk being unable to cast Wish ever again if you ...
You can use your action to make a melee attack...
Whirlwind Attack is an action you can take. If you're taking the Whirlwind Attack action, you're not able to also take the Cast a spell action. You're also not getting any extra attacks if you have the Extra Attack feature, because you're not taking the Attack action.
Based on your questions and ...
A Helm of Comprehending Languages will work
The Helm of Comprehending Languages states:
While wearing this helm, you can use an action to cast the comprehend languages spell from it at will.
The comprehend languages spell in turn states:
For the duration, you understand the literal meaning of any spoken language that you hear. You also understand any ...
Magical Armor +1/+2/+3
The DMG doesn't specifically list e.g. "Plate Armor +2", but rather the following, generic description (DMG, p. 152):
Armor, +1 , +2 , OR +3
Armor (light, medium, or heavy), rare (+1), very rare (+2), or legendary (+3)
You have a bonus to AC while wearing this armor. The bonus is determined by its rarity.
So, for armor ...
Mechanically speaking, it is not possible to attack an unaware creature outside of initiative order.
Such a situation should be resolved by an initiative roll in which the unaware creature is Surprised until the end of their first turn - and then the Dread Ambusher feature applies as normal, during the Gloom Stalker's first turn bonus attack.
A Ranger Beast Master could choose a Pteranodon as an animal companion
The PHB states:
At 3rd level, you gain a beast companion that accompanies you on your adventures and is trained to fight alongside you. Choose a beast that is no larger than Medium and that has a challenge rating of 1/4 or lower.
Pteranodon's are medium sized beasts of challenge ...
Sage Advice sets the precedent that Volley is one attack with multiple rolls
At level 11, a Hunter ranger gets a "Multiattack" feature per the PHB. That multiattack manifests in one of two ways: Either a ranged type (Volley) or a melee type (Whirlwind Attack):
At 11th level, you gain one of the following features of your choice.
The Beastmaster Ranger's Ranger's Companion feature states:
[...] If the beast dies, you can obtain another one by spending 8 hours magically bonding with another beast that isn't hostile to you, either the same type of beast as before or a different one...
This is the only way mentioned of acquiring a new companion, so unfortunately if that is not an ...
Yes, the attack would bypass that reistance
Creatures that say this only resist B-P-S damage types
Damage Resistances bludgeoning, piercing, slashing from nonmagical attacks
When a statblock says this, it means that the creature only is resistant to the bludgeoning, piercing, and slashing damage types from nonmagical attacks. Since force damage is its ...
It does not literally grant greater invisibility but it does not end when you make an attack
Things do only what they say they do, and the Fade Away option doesn't say that it ends when making an attack. However you've forgotten a significant part of the feature:
You can use a bonus action to magically become invisible, along with any equipment you are ...
It doesn't, these options are mutually exclusive
Though it doesn't state it explicitly, it is a fairly reasonable assumption that Greater Favored Enemy has the prerequisite of having the Favored Enemy feature. Since Favored Foe (variant) explicitly replaces Favored Enemy, you would not meet the prerequisites for Greater Favored Enemy and thus gain no ...
RAW, no you could not choose a swarm
Throughout the relevant rules text, the companion is continually referred to in the singular as 'a beast or 'the beast'. Most crucially in the section that details eligible choices it says 'Choose a beast'.
The swarm of ravens is never referred to as a singular beast in the rules, it is a 'swarm of Tiny beasts' (plural) ...
Avernus is a desert
The best descriptions of Avernus I've found are in the Baldur's Gate: Descent into Avernus adventure, under the "Paradise Lost" heading in the introduction (p. 9):
Before the Blood War reduced it to a blasted wasteland, Avernus was a honey trap created by Asmodeus, a paradise of infinite delights designed to lure and enrapture mortals....
Your interpretation is correct.
As the feature description states, you are invisible while in darkness to any creature that is only able to see you thanks to its darkvision. It doesn't have the restrictions of the invisibility spell, only its own (previously stated) restriction. And as you note, you can attack from within 5 feet of an enemy without ...
By the rules as written, no.
Normally, in any given turn a beast master ranger's animal companion only does what it is told by its master on that turn, and there is no provision within the rules for the companion following one instruction over multiple turns, like say chasing down a foe or continuing to attack a specific target. If, on a given turn, you do ...