Can the cantrips gained from the Dragonmark feat be cast multiple times?

Question

The Dragonmark Feat from Unearthed Arcana: Eberron says:

You gain the ability to innately cast spells and cantrips, as summarized in the Dragonmark Benefits table, using the spellcasting ability listed under the Ability column. You cast each spell at its lowest level. Once you cast a given spell this way, you must finish a long rest before you can cast it innately again. You must still expend any material components.

Every dragonmark gives the character access to a first, second and third level spell, as well as a cantrip. The second and third level spells can only be cast if the character is of high enough level (, 5th and 9th, respectively).

Usually you can cast the cantrips you know infinitely often. But the way this feat is worded seems to imply, that the cantrips gained from dragonmarks are treated exactly like the other spells, which means their use is limited to once per day. I’m am not sure if I interpret this correctly, if this is intended this way, or just worded weirdly.

Answer 1

You can only cast them once per long rest

As you quoted above, you can only cast each spell once per long rest. A cantrip is still a spell (just at 0 level, which would be the lowest level you cast it as) and therefore falls under the same requirement.

Counter-examples

Dragonmark differs in its language and requirements from things like the Magic Initiate Feat or The cantrips gained from a certain race (like High-elf.) Those simply add that cantrip to your current list and do not have a limitation on uses/day.

Answer 2

Cantrips can be cast as often as you want.

From page 201 of the Player's Handbook:

A cantrip is a spell that can be cast at will, without using a spell slot and without being prepared in advance. Repeated practice has fixed the spell in the caster’s mind and infused the caster with the magic needed to produce the effect over and over.

Your quote:

You gain the ability to innately cast spells and cantrips

Though a cantrip is a type of spell, in 5e, when rule text applies to both, it (usually) specifies both. Just how technically a square is a rectangle, but it's a special case that usually qualifies a special mention.

Once you cast a given spell this way, you must finish a long rest before you can cast it innately again.

It says nothing about waiting to cast a cantrip until a long rest. Combined with the fact that it indicates them separately earlier in the same paragraph, I can only interpret that to mean that the above sentence does not apply to cantrips. Especially since this is particularly unusual behavior for a cantrip, I would expect such a change to be very specifically noted.

Answer 3

The wording is terrible and should be fixed and until it is we don't know.

This is often a problem with Unearthed Arcana articles. As the introductory text says:

You can think of the material presented in this series as similar to the first wave of the fifth edition playtest. These game mechanics are in draft form, usable in your campaign but not fully tempered by playtests and design iterations. They are highly volatile and might be unstable; if you use them, be ready to rule on any issues that come up. They’re written in pencil, not ink.

... and it seems like the pencil made some mistakes, here. Particularly, this is weird and inconsistent. Consistently throughout the game, cantrips are unlimited-use abilities: there are no official materials with limited-use cantrips, and in fact, by definition:

A cantrip is a spell that can be cast at will, without using a spell slot and without being prepared in advance.

The text you quote seems to contradict this in one of two ways: either it presents a cantrip which you can't cast at will, or it makes a distinction between cantrips and spells that the existing rules clearly do not.

Now, it could be that there is subtle meaning hidden in this writing. It's more likely, though, that this is just an oversight in the playtest material, and there was some thought that should have been better spelled out but wasn't. Leaving the cantrips at-will would be more consistent with existing material, but perhaps this feat is meant to have additional limitations because the designers felt it was very powerful in other ways. We don't know.

Until this becomes official — if it ever does — you should make a decision that seems best for your game. Either of the possible explanations seems reasonable enough, although to my eye it seems like leaving the cantrips at will wouldn't cause any trouble (because all of these cantrips are easy to get at will in some way).