I'm creating a new cantrip to be used that would allow several targets to be hit in a line, with diminishing damage (half the damage of the target hit before it), and my initial idea was to word it the same way as Green Flame Blade and call it a melee attack. But I thought that could become unbalanced if a paladin ever got ahold of it, so I then wanted to call it a ranged attack. But that got confusing on how to word it because of the weapon required (a weapon that deals slashing damage), so I'm stuck on what to call it. If I can just call it an attack without having to specify which one it is, that would be great, but I don't know if that concept exists in 5e. So I'd like to know any examples of such attacks, if they exist.
Are there any weapon attacks that are not considered to be either melee or ranged
attackdnd-5ehomebrewweapons
Best Answer
5th Edition D&D only recognizes Melee and Ranged attacks, irrespective of whether it is a Weapon attack or not
In the Player's Handbook, under the section Making an Attack (pg. 193—), there's subheadings for Melee Attacks and Ranged Attacks, and no further distinction is made. That doesn't necessarily preclude you, as DM, from adjudicating further types of attacks, but given how many rules directly and explicitly interact with the rules for these two types of attacks, I don't think it's advisable to create a third category of attack.
Granted, the line between these types of attacks is not always clear-cut. For example, the spell spiritual weapon allows the spellcaster to make a "melee spell attack" against a creature that's quite a substantial distance away from the spellcaster. That might seem unintuitive, but the mechanical consequences are very clear:
So it's pretty reasonable for the spell you're trying to create to simply use a Melee Spell Attack (or a Melee Weapon Attack, if it's triggered identically to Green-Flame Blade or Booming Blade) to decide its success or failure.
You needn't worry about Paladins
Unable to see the exact wording you've proposed for your new spell, I'm going to speculate that the wording probably reads something like this:
So just to start with, it's clear that a paladin's ability to add Divine Smite damage to their damage rolls would not have any notable knock-on effects on the other targets of the spell. They would be able to do a very high amount of damage on a critical hit, but that's also true of spells like Green-Flame Blade and Booming Blade, which are perfectly acceptable in the current game.
Now, it's possible you've worded your cantrip that it will instead base the damage of the line AOE effect on the total damage that the first creature took, which would cause a Paladin's smites to scale very powerfully, and in that context, my suggestion is to instead consider the wording I've chosen. It's clean (and nearly identical to how spells like Green-Flame Blade and Booming Blade are written) and difficult to exploit.
And if you'd rather stick to your version, I honestly wouldn't worry about it so much. It's sometimes okay to let players discover powerful combos, and if a paladin's ability to propagate smite damage to extra creatures in a line is so game-breaking as to break the balance of a campaign, I think that speaks to broader, more systemic problems with how the encounters are designed in that campaign, or in how the DM is building stakes.