Since the Hexblade warlock's Hex Warrior feature changes your pact weapon's attack modifier to use Charisma instead, does it also turn booming blade's modifier from Strength to Charisma?
[RPG] Does the Hexblade warlock’s Hex Warrior feature change Booming Blade to use your Charisma modifier
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Best Answer
Hex Warrior and booming blade can work together.
"That weapon" being either the daily touched weapon or the Pact of the Blade weapon. I'll call it the HW-weapon for short.
When you cast booming blade, you have to make a melee attack with a weapon. Usually, that involves using either the Strength or Dexterity modifier, because that's how the typical rules for attacks work - not because booming blade asks you to use either modifier.
If you make that melee attack with your HW-weapon, then you follow the Hex Warrior rules as you would for any attack with your HW-weapon and add your Charisma modifier instead of Strength or Dexterity.
The key point here is that Hex Warrior does not modify the booming blade cantrip; rather, it modifies the melee weapon attack made as part of the booming blade cantrip.