Dungeon Master Assistance

A place to share thoughts and ideas about Dungeons and Dragons

D&D 5E – The Nature of Magic

What is Magic? How does it work?

I was trying to figure out how (in 4th and 5th edition Dungeons and Dragons) a character could learn all there was to know about a magic item by simply examining it for an hour. This wasn’t possible in earlier editions. You could only learn about an item by trial and error or by some magical means. It is only now coming up because I never played 4th edition, and this is the first time I have been the DM running a 5th edition game.

After a lot of research (Google is my friend) I finely came to the realization that the nature of magic has changed. To make logical sense out of it all (assuming you can apply logic to the rules of magic in a fantasy game), this is what I came up with.

Nothing below is official. It simply represents my ideas and house rules.

The Source of Magic

Behind reality as the player-characters know it, there is a sort of internal “skeleton”, over which reality exists like skin atop muscle and bone. This “skeleton” can best be envisioned as an unseen essence that pervades all parts of the multiverse, directly linking everything to every other thing. This is the source of all magic. When you cast a spell, you actually create a specific alteration in the local essence, which then causes the spell effect you wanted in the ‘real’ world. Some call this essence “Mana”. In the Forgotten Realms it is called the “Weave”. If the Weave in an area is damaged or destroyed, magic is unreliable or impossible – that’s what creates Wild Magic and Dead Magic zones in the Realms.

All the physical laws of the universe are simply reflections of the true, background laws that govern this universal essence. The average person can only perceive normal reality, but some creatures are born with the ability to sense the universal essence.

All magic-using beings share an innate ability to manipulate the essence. Likewise, almost all those “gifted” with these abilities must receive training in arcane (wizardly) or divine (clerical) magic in order to learn how to manipulate the essence with finesse.

Bards learn that words and music are not just vibrations of air, but vocalizations with power all their own. They learn to untangle and reshape the essence in harmony with their wishes and music.

Clerics and Paladins are conduits for Divine magic, the power of the gods. Divine casting is done by channeling the essence provided by their deities and forming spells out of that.

Druids and Rangers revere nature above all, and can draw essence from the land, gaining their spells and other magical powers either from the essence that flows through nature itself or from a nature deity.

Monks make careful study of the essence that flows through living bodies. Most monastic traditions call this ki.

Sorcerers learn to harness and channel their own inborn magical abilities. They gather the essence to them from force of will.

Warlocks receive their magical abilities from a pact they made with an otherworldly being. This is similar to the way gods channel essence through divine casters.

Wizards create elaborate mental structures within the mazes of their own minds, traps which funnel magical essence like a roof collects rainwater for a barrel, stored and ready to be used over the course of a day.

Detecting Magic

This magical substructure to the universe, this unseen essence, can be manipulated by users of magic. It can sometimes be concentrated and placed inside a creature or object. Examples would include casting a spell on a creature to make it resistant to fire, or creating a ring of protection. These magic infused creatures or items emit a type of magical radiation. A creature with the ability to sense the universal essence can detect this magical glow, but it is invisible to all others without some magical way to detect it.

The “Detect Magic” spell:

Magical radiation is similar to light in that it is dimmer the farther you are from it. It can pass through most objects, but is blocked from most forms of detection by 1 foot of stone, 1 inch of common metal, a thin sheet of lead, or 3 feet of wood or dirt. For the magic radiation to be strong enough to be detected by the “detect magic” spell, you must be within 30 feet of the magic creature or item. If you sense magic in this way, you sense the presence of magic, but can’t determine in which direction, or how far away the magic item is. Anytime during the duration of the “detect magic” spell, you can take an action to see if there are any specific items or creatures within sight that you can identify as magical. You will see a faint aura around any visible creature or object in the area that bears magic. If you don’t see an aura around anything, then the magic that you sense must be out of sight. It could be one or more items or creatures that are invisible or hidden. For instance, they could be behind a door or in a box or under a secret panel in the floor.  If you do not see it, you do not see the aura. This also means you cannot use this to locate invisible creatures or objects. Any aura detected can only be seen by the spellcaster. The color of the aura corresponds to the object’s school of magic. If the item has no particular school then the aura has no color. The brightness of the aura indicates the relative strength of the magic.

Unless the magic item is invisible, you can see it if it is within range but behind a transparent barrier, such as glass. You also perceive its magical aura. This includes potions that are in glass bottles. If the potion is in a container that is not see-through you will not see the aura unless you remove the cap and look directly at the potion.

Identifying Magic

If you were to touch a creature that possesses magic, you would not typically feel the magic. But if you were to hold a magic item for a few seconds (a round), you would feel the magical radiation generated by the item effecting your body and/or your mind in some way. The sensation will differ depending on the magic contained within the item. If you continue to hold the item and concentrate on it for a short rest, “At the end of the rest, the character learns the item’s properties, as well as how to use them.”

“Potions are an exception; a little taste is enough to tell the taster what the potion does.” You can’t hold a potion in your hand. The bottle isn’t magical, just the liquid it contains. You could stick your finger into it, and leave it there for an hour, but a drop on your tongue is much faster. A taste is not enough to receive the effects of the potion. If it is poison, a taste is not enough to do harm to the taster. When tasting it, the magic of the potion enters your body and instantly reveals its nature.

Magic items want you to know their properties! The magic is alive! Or, rather, it contains a life force. All life has magic flowing through it to some degree, and all magic has some degree of life flowing through it. This explains why some powerful magical items possess sentience. The item’s creator forced so much magical essence into the item that it became sentient. This also explains why magical essence tends to be attracted to living creatures (and sometimes to dead creatures). And why magic can create or destroy life.

The Identify Spell

This spell makes you more receptive to the magical essence of the item. To identify the magic in an object with this spell, you must remain in physical contact with it for at least 1 minute. “If it is a magic item or some other magic-imbued object, you learn its properties and how to use them” (That much is the same as you can get from examination alone. But with the spell you also learn) “, whether it requires attunement to use, and how many charges it has, if any. You learn whether any spells are affecting the item and what they are. If the item was created by a spell, you learn which spell created it.”

To use this spell to identify a potion still requires one minute, but you must come into physical contact with the potion, not just the bottle it is in. A drop on your tongue or on any spot on your exposed flesh is enough.

The identify spell won’t trigger a curse, but it also doesn’t tell you if an item is cursed. There is no easy way to know if an item is cursed except by trial and error. Even the legend lore spell may only hint that it may be cursed. The curse on an item may cause you to misidentify it.

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7 responses to “D&D 5E – The Nature of Magic

  1. Gordon Johansen May 2, 2017 at 6:58 pm

    I just wanted to mention how much I like your posts and emails. They are always well written, thoughtful, literate, and usually agree with my thinking on the subject (or would if I had thought about it). Thanks for doing them.

  2. Paul Lee May 22, 2017 at 8:30 am

    This is very interesting as I am creating a campaign dealing with Arcane Magic “going wrong”. Spells having unintended effects. The idea is that there are two sorts of Arcane user. Wizards and Mages. They are the same stat wise it is just the job title. Mages decided to stay in the lab and research rather than adventure. Periodically the mages get a few who become intent on making all Arcane magic easy. You and I call it cantrip. So over the history of this world attempts have been made and led to destruction on various levels. The attempt now happening is the most powerful attempt yet. It is happening in secret as this has been outlawed even by evil kingdoms. I am going to tie the magic misfiring to areas where there are materials that are magic friendly like Mithril mines for instance. This you posted here was instrumental in me coming up with this concept. (the end result if the heroes fail to stop this will be the destruction of the universe. If they do stop it, there will be a thinning of the walls between worlds. A portal will appear eventually letting a new creature and race into the world. Dragons and Dragonborn. which will set up a new campaign.) Thank you for this. I thought you might like to read about how your work inspires some people.

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