Quote from RabbitOfAutumn >>

Quote from EWDAMAN >>

I'm having trouble seeing if this is already answered so sorry if it has but I'm trying to add a spell to a feat as a once per long rest thing which isn't a problem but is there a way to make it add to a characters spell list also so they can cast it as a levelled spell after they've used the free use?

 In my experience I've found you can simply add it twice; once for the once-per-long-rest, and once as a spell that is always prepared and doesn't count towards your known spells.

 
This cannot be done through a homebrew feat.

Quote from EWDAMAN >>

I'm having trouble seeing if this is already answered so sorry if it has but I'm trying to add a spell to a feat as a once per long rest thing which isn't a problem but is there a way to make it add to a characters spell list also so they can cast it as a levelled spell after they've used the free use?

 
Not through a feat, no. 

It can be done via Species, Background and Subclass. These have options to add a spell to class spell lists. Note that "adding to spell list" means they can choose the spell when gaining/preparing spells through level up (or adding to spell book for Wizards).

However, it sounds you're not wanting to add to spell list but to add it to a character as a known/prepared spell. This also cannot be done via homebrew feats. It can only be done via Species and Subclass - choose Add spell, and where it says "count as known" set to No, and for "prepared" choose yes and "cast with slots" to yes.

Question- building a subclass  for a players. But having issues get right number of spell slots and cantrips  show up at right class level.   And tips to show me what doing wrong or where should go.

Used arcane tricker as backbone for it

Quote from Kelbar >>

Question- building a subclass  for a players. But having issues get right number of spell slots and cantrips  show up at right class level.   And tips to show me what doing wrong or where should go.

 

Used arcane tricker as backbone for it

This is automatically determined depending on whether the subclass is for a spellcasting class or not. If not, it will have slots/etc like Arcane Trickster or Eldritch Knight. If it is a spellcasting class, like sorcerer, the options are ignored and it will work like normal sorcerer. You cannot change what spell slots they get and when, or standard cantrips.

So let's start with - what class is this a subclass for?

So it a rouge 1/3 caster with Druid spells but we wanting to give it 3 cantrips at 3rd level and 4 at 11th

just feel like dndbeyond system is saying no.

I'm having trouble with it I think, even after I add the spell again its not showing up as a prepared spell

Thank you

Trying to make a feat with the “Spellcasting or Pact Magic Feature” prerequisite, but can’t seem to find any general spellcasting prerequisite other than “The ability to cast at least one spell” under the Custom Value section. How would you set such a thing up, if it can be done?

Quote from Kailaidescope >>

Trying to make a feat with the “Spellcasting or Pact Magic Feature” prerequisite, but can’t seem to find any general spellcasting prerequisite other than “The ability to cast at least one spell” under the Custom Value section. How would you set such a thing up, if it can be done?

 
There is no option for enforcing a prerequisite of having the Spellcasting or Pact Magic feature. You can enter this in description and leave the rest blank. The system will not restrict this - it would be up to player and DM to ensure the restriction is adhered to.

Quote from Cyb3rM1nd >>

Quote from Kailaidescope >>

Trying to make a feat with the “Spellcasting or Pact Magic Feature” prerequisite, but can’t seem to find any general spellcasting prerequisite other than “The ability to cast at least one spell” under the Custom Value section. How would you set such a thing up, if it can be done?

 
There is no option for enforcing a prerequisite of having the Spellcasting or Pact Magic feature. You can enter this in description and leave the rest blank. The system will not restrict this - it would be up to player and DM to ensure the restriction is adhered to.

 Seems like a bit of an oversight, doesn’t it? A spellcasting general restriction prerequisite seems important for the core rulebook feats that need it.