Do I get to add my dexterity bonus to my damage rolls with Shadow Blade?

Tonight I brought out my shadow blade and my GM ruled that I didn’t get to add any extra damage to my shadow blade from my dexterity, because spells only do what they say they do, which is fine and I rolled with it.

My contention is that the spell says I should be able to add my dexterity to damage rolls since it is a finesse weapon. Was it the intent of this spell to deal 2d8 or 2d8+dex on a hit?

For those who want to know: my GM let me use my spell casting ability + PB for attack rolls.

Shadow Blade says:

You weave together threads of shadow to create a sword of solidified gloom in your hand. This magic sword lasts until the spell ends. It counts as a simple melee weapon with which you are proficient. It deals 2d8 psychic damage on a hit and has the finesse, light, and thrown properties (range 20/60).

Finesse says :

When making an attack with a finesse weapon, you use your choice of your Strength or Dexterity modifier for the attack and damage rolls. You must use the same modifier for both rolls.

Can you benefit from Horde Breaker if you attack as part of Booming Blade or Green Flame Blade?

The booming blade and green-flame blade cantrips from the Sword Coast Adventurer’s Guide both have the particularity of including a single melee weapon attack as part of their casting.

Several martial abilities, like Extra Attack or the Martial Arts’s bonus attack, do not work with these cantrips because they require the Attack action to be used.

However, the Hunter Ranger’s Horde Breaker ability (which lets you do an additional attack on another target with the same weapon once per turn) only requires an attack with a weapon, not necessarily the Attack action. Therefore, I’m wondering if a Hunter Ranger with Horde Breaker could get that additional-attack-on-different-target-with-same-weapon when using booming blade or green-flame blade.

Will the feat Spell Sniper work with the Spell Shadow Blade?

Will the feat Spell Sniper work with the Spell Shadow Blade?

Spell Sniper

Prerequisite: The ability to cast at least one spell

You have learned techniques to enhance your attacks with certain kinds of spells, gaining the following benefits:

  • When you cast a spell that requires you to make an attack roll, the spell’s range is doubled.
  • Your ranged spell attacks ignore half cover and three-quarters cover.
  • You learn one cantrip that requires an attack roll. Choose the cantrip from the bard, cleric, druid, sorcerer, warlock, or wizard spell list. Your spellcasting ability for this cantrip depends on the spell list you chose from: Charisma for bard, sorcerer, and warlock; Wisdom for cleric or druid; or Intelligence for wizard.

Can a warlock use Pact of the Blade to restructure a magical pact weapon into a different form?

I don’t have the exact text, but I’m going to be running a Fey Warlock for an upcoming campaign. I remember this for Pact of the Blade at level 3: You may create your pact weapon in any form you wish, and you have proficiency with your weapon.

I don’t have the exact wording, but I know that you can make a magical weapon your pact weapon by spending some time with it, which can be done as part of a short rest.

My question is:

Let’s say the party finds a magical axe that let’s say its a +1 axe. If I make that weapon my pact weapon, then I summon it: can I choose what form it comes in? For instance, taking a magical axe, making it my pact weapon, and then reforming it as, a rapier instead. Or finding a magical weapon with an elemental-alignment, and restructuring it into a weapon better suited for the character?

The only time I could think that you would consider trying this with the Pact of the Blade is if you’re running a dex-based magical warrior, but it was an interesting idea that popped into my head. Does this work?

Is incorrect what Thirsting Blade affirms that would be the rule without it? [closed]

By RAW:

"Thirsting Blade

Prerequisite: 5th level, Pact o f the Blade feature

You can attack with your pact weapon twice, instead of once, whenever you take the Attack action on your turn."

So, by RAW: If it says "instead", then otherwise (A.K.A. without that eldrich invocation) the rule would be: "You can attack with your pact weapon once whenever you take the Attack action on your turn."

But the "original" rule is not this, you can’t "attack with your pact weapon once whenever you take the attack action", actually, you can attack with your pact weapon once when you take the attack action AND choose to attack with your pact weapon. So, is incorrect what that invocation affirms that would be the rule without it?

Can a 5th level Pact of the blade warlock, use his action to grapple, then attack twice with his pact weapon?

By RAW, when I use a grapple:

"Grappling

When you want to grab a creature or wrestle with it, you can use the Attack action…"

And the 5th level eldrich invocation:

"Thirsting Blade

Prerequisite: 5th level, Pact o f the Blade feature

You can attack with your pact weapon twice, instead of once, whenever you take the Attack action on your turn."

So, by RAW, can the warlock, with those requisites, use his action to grapple and then attack twice with his pact weapon?

Pact of the Blade and Weapon Bond with Magic Ammunition

While I was reading the book, I had a definite idea with reloading magic ammunition (Given that this ammunition is one). It’s not like from view of optimization, more like gamemechanic opportunity. I considered this from the point of the Pact of the Blade, but at the same time I was searching answers for Weapon Bond.
I know in advance that PotB allows you to use any magic weapon as a pact weapon, including ranged.

However, later on I came across Jeremy Crawford’s answer about using arrows with Weapon Bond. I wondered where I was wrong when I read the book, and I noticed one thing that caused misunderstand.

I considered only magic ammo. In Xanathar’s Guide and Dungeon Masters Guide when writing the type of magic item for ammunition, sourcebook directly write the type "Weapon (Arrow)". Perhaps:

Arrow of Slaying
Weapon (arrow), very rare

An arrow of slaying is a magic weapon meant to slay a particular kind of creature. Some are more focused than others; for example, there are both arrows of dragon slaying and arrows of blue dragon slaying. If a creature belonging to the type, race, or group associated with an arrow of slaying takes damage from the arrow, the creature must make a DC 17 Constitution saving throw, taking an extra 6d10 piercing damage on a failed save, or half as much extra damage on a successful one.
Once an arrow of slaying deals its extra damage to a creature, it becomes a nonmagical arrow.
Other types of magic ammunition of this kind exist, such as bolts of slaying meant for a crossbow, though arrows are most common.

Whereas common ammunition in PHB is classified as a just item (hence non-weapon) in the Adventure Gear list.

Is it right to make conclusion that in this case it can be considered as extension of Jeremy Crawford’s post, and Magic ammunition is legal for PotB and WB like pact/bond-weapon, but Non-magic ammunition is not legal for PotB and WB like pact/bond-weapon in RAW?

Can my players abuse this homebrew Blade of the Thirst magic item?

I am designing a homebrew magic item. I think I have it balanced but need to know if there are any loopholes I have not seen.

Blade of the thirst, magical longsword, requires attunement, versatile, finesse.

Concept:
The weapon of an ancient vampire lord, the blade of the thirst is imbued with the vampire’s lust for blood.

Description:
A black longsword with a guard made up of 3 carved black roses; the guard is gripped thorned vines that extend from the roses and bind to the wielder’s wrist.

Features:
Blade of the thirst confers proficiency for itself onto the wielder.
At the start of the wielder’s turn the blade of thirst drains blood from its wielder, causing 1/2/3 damage to the wielder (player’s choice); the sword counts as a +x weapon until the end of the turn, where x is the damage caused to the wielder.

  1. Is this magic item balanced?
  2. Is there an obvious way to abuse it?

Can an Invisible Blade Full Attack with all Sneak Attacks?

As far as I can see, rogues have no limit to their number of sneak attacks. Using the bluff skill to feint can make an opponent flat-footed, but since bluff only affects your next melee attack, and it takes a standard action, a rogue can only use this method to deal sneak attack damage once per round (once every other round if they don’t have a way to attack outside their turn)

Invisible Blade from CW, however, makes feinting a free action. Does this mean that, for example, a rogue 15/IB 5 can make a full attack, feinting once before each attack, to deal sneak attack damage four or more times?