You would only add the proficiency bonus one time.
As you have mentioned in your question:
In addition to the areas where it normally uses its proficiency bonus, an animal companion also adds its proficiency bonus to its AC and to its damage rolls.
This means that when you roll for damage on an attack for your animal companion, you would add its ...
They are half-correct that a Pact of the Kraken Warlock does exist, but it was not released in Unearthed Arcana. Dungeons and Dragons Franchise Creative Director Mike Mearls made it for the January 30, 2018 episode of his Happy Fun Hour stream. It is intended for community play-testing and feedback (like Unearthed Arcana), but has not been released as a part ...
By default, artificers are capable of making magic items in three main ways. Certain subclasses gain additional methods for making specific magic items (e.g. the Artillerist gains the ability to make a specific variety of magic wands with their Wand Prototype class feature) detailed in their class features, but these are applicable to all Artificers:
The nuance between these two items is the difference between an item casting a spell and the item having a spell-like effect.
The first effect you bring up is casting the Heroism spell once a day through the armor. This follows all the mechanics of Heroism, including duration and requiring concentration as per the spell description.
The second effect you ...
There is no specific rule for this, so it comes down to the DM's ruling.
I would note that the class does say:
You can focus psionic energy on one of your psionic disciplines to draw ongoing benefits from it. As a bonus action, you can choose one of your psionic disciplines and gain its psychic focus benefit, which is ...
Short answer: Ask your DM.
Long answer: There are no rules regarding your internal organs such as your heart or lungs so this would be entirely up to your DM.
How I would rule as the DM: You still need your heart to pump blood through your body for things other than breathing. Such as healing or distributing other things throughout your body. Your lungs I ...
It is up to the DM to decide
This is a case where we have a mechanic introduced from Unearthed Arcana that does not mesh clearly with the rules. It's unclear if WotC considered the net when coming up with this, but for whatever reason, that specific interaction isn't addressed – which means it's up to the DM to decide.
This is also a case where there isn't ...
UA Eberron Arificer states:
Returning Weapon: This magic weapon grants a +1 bonus to attack
and damage rolls made with it, and it returns to the wielder’s hand immediately after it is used to make a ranged attack
So immediately after the net is used to make a ranged attack, it is returned to the owner's hands.
D&D Beyond states:
A Large or ...
What does "returning" mean to you? The net flies back into the thrower's hand, or it disappears and reappears also in the thrower's hand? If it's the first one, you can make the guy who crafted the returning net feel like a dummy. If it's the latter, you can make him feel super smart. If you feel it's OP you could outright prohibit it, or just right up and ...
The net returns to the artificer and the target remains restrained until freed, RAW.
There are no special conditions indicated on the returning weapon. In common with other rulings, “it does what it says it does” applies in this case.
The weapon returns to the wielders hand immediately after it is used to make a ranged attack.
Returning Weapon: This ...
Assuming that these do work together you can push them between 16 and 25 feet away from you
Let's assume you hit a creature with a Repelling Blast eldritch blast which states:
When you hit a creature with eldritch blast, you can push the creature up to 10 feet away from you in a straight line.
Note that this allows you to push them anywhere from 1 to 10 ...
You must choose to use this feature when casting the spell.
Let's dissect this feature:
Once per turn
An additional restriction to stop Quickened Spell's shenanigans. Nothing related to timing.
when you cast a spell, you can trigger the curse if that spell deals cold or lightning damage to the cursed target or forces it to move.
This is ...
When you cast the spell
The first part of the sentence has your answer. It states: "Once per turn when you cast a spell". Not "Once per turn when a spell you cast does damage".
Keep in mind there are various reasons why you might be able to trigger this ability and not have it have any effect. A creature could be immune to cold/lightning damage. They might ...
Going by the UA RAW, it would appear that the net returns to the thrower regardless of a hit or miss:
This magic weapon grants a +1 bonus to attack
and damage rolls made with it, and it returns to the wielder’s
hand immediately after it is used to make a ranged attack.
As per the infusion's description, the ...
The rules simply don’t cover this case; it is entirely up to the DM to decide what happens.
Four possibilities spring to my mind:
The net returns, without the target, making the endeavor pointless.
The returning property fails entirely, the net being pinned in place by the target.
The target is dragged back to the artificer.
The returning is delayed until ...