dnd 5e – Is it possible for a caster to have 2 castings of Foresight active?

The main question is: how reliable do you want it to be?

The unreliable option

A Sorcerer 9 has enough sorcery points to twin a spell scroll of foresight; however, spell scrolls have the following restriction:

If the spell is on your class’s spell list, you can read the scroll and cast its spell without providing any material components. Otherwise, the scroll is unintelligible.

Therefore, the lowest level option is Sorcerer 9 / (Bard, Druid, Warlock, or Wizard) 1. Unfortunately, a 1st-level Bard, Druid, Warlock, or Wizard can only cast 1st-level spells normally, so the following restriction applies when using the scroll:

If the spell is on your class’s spell list but of a higher level than you can normally cast, you must make an ability check using your spellcasting ability to determine whether you cast it successfully. The DC equals 10 + the spell’s level. On a failed check, the spell disappears from the scroll with no other effect.

If the sorcerer has 20 Charisma (and chose Bard or Warlock as their single additional level), they only have a 30% chance of successfully casting the spell.

The reliable option

We need 9 levels of sorcerer to be able to twin foresight, as well as 17 levels of Bard, Druid, Warlock, or Wizard to avoid the spell scroll ability check. Since that is impossible, we need another option. The 8th-level spell glibness holds the key:

Until the spell ends, when you make a Charisma check, you can replace the number you roll with a 15.

The spellcasting ability check will be Charisma-based, if we choose a level of Bard or Warlock. With glibness and at least 18 Charisma, the spell scroll ability check cannot be failed (15 + 4 = 19).

But wait! Glibness isn’t a sorcerer spell. Fortunately, we can use wish to duplicate glibness. Putting all of that together, we’ll need Sorcerer 17 / (Bard or Warlock) 1.

The mount option

The spell find steed has an interesting clause that gives us another option (which works for find greater steed, as well):

While mounted on your steed, you can make any spell you cast that targets only you also target your steed.

Therefore, if you cast foresight while mounted, your steed also receives the benefits of the spell. Find steed and find greater steed are paladin-only, but a bard can use Magical Secrets to grab one of them. Bard 17 can get you foresight and find greater steed without much fuss. A Wizard 17 could use wish to duplicate find greater steed, take a long rest, and then use foresight while mounted for the same effect.

The “cheating” option

This isn’t technically what you asked for, but I’m including it for the sake of completeness. A Wizard 17 could use simulacrum to create a copy of themselves, then the wizard and their sim could both cast foresight. A Bard 17 could do the same, if they took simulacrum with their Magical Secrets.

dnd 3.5e – Is a sorcerer with the domain-access alternative class feature considered both an arcane and a divine caster?

The alternative class feature Domain Access (Complete Champion, p. 52) reads, in part:

Choose one cleric domain. If you worship a specific deity, the domain you choose must be one to
which your deity grants access. You gain the granted power of the chosen domain. In addition, you can cast one domain spell of each spell level available to you per day from that domain.

Does having access to the domain spells make a sorcer qualify for any prestige class that requires the PC to be a divine caster?

dnd 5e – How powerful is a high-level caster PC with barely any or no equipment?

Let’s assume your caster PC has crossed a high-level spellcaster and his minions the wrong way, or was overwhelmed by an army of guards. You are stripped of all equipment save for some clothes on your back and get exiled into the wild rather than imprisoned.

To substantiate “high level”, let’s say we’re dealing with a character of high Tier 3/low Tier 4, around level 15/16, so no access to e.g. Wish spells.

How much power – specifically combat power, as your skill levels would be mostly unaffected – do you lose? A Wizard cannot cast spells of 1st level or higher without a spellbook, but can still cast cantrips for 3dx or 4dx damage; a Sorcerer needs material components or a focus at the bare minimum. Same goes for Warlocks.

Additionally, most casters have lower hit dice than martial classes.

If you were to balance an encounter for this PC, how much lower does he rank than if he had access to his usual arsenal of equipment and spells? I am aware that this is hard to answer, as most CR calculations revolve around a party, but that would broaden the question too much I suppose.

To address some comments: let’s assume the caster has a “typical day’s worth” of spells prepared (either prepared like cleric/wizard, or as a sorcerer his known=prepared spells) that are somewhat balanced between damage/CC/utility. They are expecting at least one encounter either with wild beasts or enemy forces before having time and shelter to craft an arcane focus/holy symbol/etc. as addressed here.

To make the question specific enough with the addition of a specific class/race/level: let us assume a level 15 Human wizard. They have lost their spellbook, any magic items or equipment that could be used to feasably defend themselves (no daggers, armor, explorer’s pack contents etc.), but are not fully naked, i.e., they still have clothes, shoes, etc. They expect encounters with either wild beasts and/or enemy forces before they can find refuge.

dnd 3.5e – How does the spell Siphon work for a caster who is both spontaneous and able to cast prepared spells?

The description of the 3rd-level Sor/Wiz spell siphon (trans) (Complete Scoundrel 103) makes no mention of any restrictions on what spells it can replace due to the source of the siphon spell’s casting. That is, the spell doesn’t seem to care if it were cast as a prepared spell or if it were cast without preparation. Instead, the description says that the siphon spell effect can replace only expended arcane prepared spells (like those of a wizard) and expended arcane spell slots of a caster that casts spells without preparation (like those of a bard or sorcerer).

Further, with the spell’s description including tightly knit language that accommodates casters whose spells are both prepared and not prepared, it seems reasonable to allow a multiclass caster who’s capable of both kinds of casting to pick to allocate the spell’s effect appropriately however she wants. For example, I’d have no problem in my campaign allowing a sorcerer/wizard to cast the spell siphon and use appropriately the effect to replace expended prepared spells, expended spell slots, or both in some combination.

Were the spell to check the caster’s magic style—with or without preparation—, activating a wand of siphon would be complicated as the spell’s effect would then possibly be contingent upon the creator of the wand of siphon instead of the effect being contingent upon the spell itself. Under such a reading, a typical wand of siphon would default to creation by a wizard—as that would give it the lowest caster level—, so a sorcerer could still activate such a wand but receive no benefit. That’d be weird and would perhaps make the siphon spell unique among 3.5‘s official spells.

dnd 3.5e – How is miss chance calculated if a caster has Entropic shield active and is inside Darkness spell?

My question is simple. I have a warlock that has following invocations:

Darkness:

“This spell causes an object to radiate shadowy illumination out to a
20-foot radius. All creatures in the area gain concealment (20% miss
chance). Even creatures that can normally see in such conditions (such
as with darkvision or low-light vision) have the miss chance in an
area shrouded in magical darkness.”

Entropic warding:

“A magical field appears around you, glowing with a chaotic blast of
multicolored hues. This field deflects incoming arrows, rays, and
other ranged attacks. Each ranged attack directed at you for which the
attacker must make an attack roll has a 20% miss chance (similar to
the effects of concealment). Other attacks that simply work at a
distance are not affected.” Devil’s Sight: “You gain the visual acuity
of a devil for 24 hours. You can see normally in darkness and magical
darkness out to 30 feet.”

Devil’s Sight:

You gain the visual acuity of a devil for 24 hours. You can see
normally in darkness and magical darkness out to 30 feet.

With entropic warding I get 20% miss chance on ranged attacks as deflection. In addtion, Darkness grants 20% miss chance if the caster is in it. If I am inside darkness and I have entropic warding on, do my miss chances stacks up to 40% (given I get ranged attack) or do I roll miss chance twice as twice with 20% with each roll.

dnd 5e – For a multiclassed caster targeted by Spell Thief, what spellcasting ability does the target use?

The spell thief ability is directly related to the spell the target is casting. Therefore the target makes the save with the same ability they use to determine the attack roll or spell save DC for the spell that was cast.

From the rules for multiclassed spellcasting we find:

Each spell you know and prepare is associated with one of your Classes, and you use the Spellcasting Ability of that class when you cast the spell.

Since Spell Thief targets a specific spell the target makes the save with the ability associated with that spell. In your example if target casts Magic Missile with their wizard levels they make the save with intelligence. If they cast Hunger of Hadar with their warlock pact-magic, they make the save with charisma.

dnd 5e – If a spell caster loses concentration on greater invisibility, and an opponent has readied a reaction, what happens first?

As an example, both the spellcaster and the opponent (“the archer”) have 1 hp remaining, so whoever completes there action first will knock the opponent unconscious. The spellcaster casts Create Bonfire, On the archer’s space. However, The archer has readied an arrow targeting the spellcaster for “as soon as the spellcaster is visible.”

My question is, who’s action will go off first?

The relevant information on concentration can be found in the PHB (p.203):

You lose concentration when you cast another spell that requires concentration. You can’t concentrate on two spells at once.

and XGtE (p.5):

As soon as you start casting a spell or using a special ability that requires concentration, your concentration on another effect ends instantly.

Readied actions can be seen in the PHB (p.193):

When the trigger occurs, you can either take your reaction right after the trigger finishes or ignore the trigger. Remember that you can take only one reaction per round.

From this, it seems unclear who will complete there action first. What counts as the archer’s trigger finishing? does it finish when the spellcaster finishes casting their spell, as this action is what began the trigger? Or does the archer get to fire their arrow as soon as the spellcaster is visible, as they “finish” being invisible as soon as they begin casting the second spell?

Caster lvl and spheres of power

So im planning to play an incanter, and according to the Chart on spheres of power it says caster lvl +1 for every lvl.
So my question is, does does it add more caster lvls on top of your lvl in incanter class.

dnd 5e – When a Trickery cleric uses Invoke Duplicity and casts Command with the option “Approach”, does the target approach the illusion or the real caster?

The Approach option of the command spell says (emphasis mine):

Approach. The target moves toward you by the shortest and most direct route, ending its turn if it moves within 5 feet of you.

A creature commanded to approach approaches you. However, the rules do not typically work well whenever illusions are in play.

The official recommendation of WotC in the related but distinct case of illegal targeting is that GMs ignore the rules and make up whatever seems right at the time. That recommendation applies equally well in this case, and it seems pretty clear that command should force a target to approach the origin of the spell if a caster has some unusual way of moving that somewhere else, rather than having the targets counter-intuitively walk towards your actual position whilst still not knowing that you aren’t where the illusion is.

Note also that you can avoid this problem entirely by commanding the creature to “advance” instead of “approach”, or any other synonym; any word not on the list works however makes sense instead of not that.

dnd 5th – Is it possible for a wizard to write all the ritual spells he knows in the ritual book of Ritual Caster Feat when he acquires this feat?

I was reading D&D beyond the wild magic wizard and I was thinking of something when I read the recommended exploits, especially the Feat Ritual Caster:

Is it possible for a wizard to write all of the ritual spells he knows in the Ritual Caster Feat ritual book when he acquires this feat? Or do they have to find the written version somewhere?

In the description of the feat, it sounds like no, but I feel like it doesn't make sense, because the wizard knows the spells.