What is the limit of dim light for the purposes of shadow teleportation?

Shadow monks and shadow sorcerers are able to teleport from one are of dim light or darkness to another.

What would you say is the limit of the area of dim light ? For example, using a large blanket to create a shadow or if they’re wearing full body clothing like a burqa they’re technically always in a shadow. If the above examples could work, should they be allowed to bring it with them as they teleport?

Do teleportation spells conserve momentum?

To be more specific, do teleportation spells conserve momentum from before to after the obvious infinite violation of momentum conservation inherent in instantaneous magical travel? Credit to nitsua60 suggesting this sentence!

For instance, if I were to take a running leap and then Dimension Door forward, would I continue to be propelled forward by my momentum (assuming that I still have a number of feet of movement speed remaining), or would that dissipate as part of the spell.

Similarly, if I were to launch a cannon ball from a cannon and then Teleport it into the throne room of a local king, would the cannon ball continue traveling forward at the same velocity or would it simply drop to the ground (given that the Teleport spell was successful)?

This is a similar question, but the only conclusive answer was from the Pathfinder SRD. I’m wondering if there is anything specifically in dnd-5e text that explicitly answers this question.

Do all creatures moved by Fiery Teleportation have to move in the same direction?

The UA Wildfire druid’s wildfire spirit has an ability called Fiery Teleportation with the following description:

Fiery Teleportation (Recharges after a Short or Long Rest). The spirit and each willing creature of your choice within 5 feet of it teleport up to 30 feet to unoccupied spaces you can see. Each creature within 10 feet of the space that the spirit left must succeed on a Dexterity saving throw against your spell save DC or take 1d6 + 2 fire damage.

Does this move all the affected creatures as a single group, landing them all within 5 ft of the spirit’s new location, or can you move each one independently? For example, if you were surrounded by another group, could you teleport your group outward to be surrounding them, or could you only shift your entire group in the same direction?

Why does the Fey Teleportation feat name a spellcasting ability for the Misty Step spell?

From the feat description:

You learn the misty step spell and can cast it once without expending a spell slot. […] Intelligence is your spellcasting ability for this spell.

As far as I’ve been able to determine, spellcasting ability is only relevant when there’s an attack roll involved, there’s a saving throw, or the ability modifier augments damage. In the case of Misty Step, none of the three apply. There are similar cases with other magic racial feats (“Charisma is your spellcasting ability for all three spells,” where one of the spells is Detect Magic).

So what’s the significance of naming a spellcasting ability?

Does teleportation count as movement for a Tabaxi’s Feline Agility trait?

A Tabaxi, after using his Feline Agility trait to double his movement speed for a turn, must then move 0 feet on a subsequent turn in order for his trait to recharge.

If the Tabaxi teleports, does it count as movement for his trait? (If so, this means that the trait won’t recharge on that turn.)

Is a permanent teleportation circle only a destination, and not a point of departure?

The 5th-level spell teleportation circle says:

As you cast the spell, you draw a 10-foot-diameter circle on the ground inscribed with sigils that link your location to a permanent teleportation circle of your choice, whose sigil sequence you know and that is on the same plane of existence as you. A shimmering portal opens within the circle you drew and remains open until the end of your next turn.

[…]

You can create a permanent teleportation circle by casting this spell in the same location every day for one year. You need not use the circle to teleport when you cast the spell in this way.

The teleportation circle you draw seems to be a point of departure only when you cast it. When it’s a permanent teleportation circle, however, it doesn’t mention whether you can use it as a point of departure.

Can permanent teleportation circles only serve as destinations?

Is a teleportation circle’s shimmering portal always open?

There is some disagreement regarding the status of a shimmering portal for a permanent teleportation circle.

My understanding is that the permanent circle has a permanently open shimmering portal.

The contesting opinion is that circle still requires a wizard to use a spell slot to open a portal in the circle.

To me their interpretation defeats the purpose of a permanent circle.

If a random squirrel discovered a permanent teleportation circle, would they see an open portal that they could enter?

Can a teleportation spell to a false destination have no similar area?

I am struggling a bit to grasp the limits of the similar area definition in the description of the teleportation spell for D&D 5e.

The part I have a problem with is more specifically with the “area that’s visually or thematically similar to the target area”.

For example if the caster was in the elemental plane of fire and tried to teleport to some kind of Oasis that he would have been tricked into thinking exists on that plane what happens?

Does it get teleported to the closest lava pool with a shape somewhat similar to where it thought it was going? Does it get teleported to the water it has in its backpack or does the spell fails?

With the definition of the spell I would assume that if anything on the plane has some kind of link with the target area that the DM can think of, it should be allowed to be defined as a similar area, but some situations may have some really messed up link and I wonder if in extreme cases it isn’t more logical to have the spell to fail.

Can a permanent Teleportation Circle be made on a moving vehicle?

There is a similar question about this for 3.5e, but can a permanent teleportation circle be created on a large moving vehicle? For example, a sailing ship, or a wide portable floor?

The spell says:

You can create a permanent teleportation circle by casting this spell in the same location every day for one year. You need not use the circle to teleport when you cast the spell in this way.

To further illustrate the question, here are sub-questions:

  • What happens if I cast the spell on the vehicle for a year (and it is unmoving), and then the vehicle moves? Can it still be used as a destination point?

  • Can I create a permanent TC on the vehicle if it is never in the same place twice in the first place?