[RPG] Does the material component of Booming blade need to be the same one used in the attack

cantripsdnd-5espell-componentsspells

Does the spell specify that the material component need be the same as the one used in the attack?

As part of recent errata to the green-flame blade and booming blade cantrips, their material components have been amended to "a melee weapon worth at least 1 sp" (Sword Coast Adventurer's Guide, 142).

If the attacking weapon and material component do not have to be the same, then can you use a separate weapon (for instance a Pact weapon or a Psychic Blade) for the component?

Best Answer

The material component weapon must be used to make the attack

The spell states (emphasis mine):

You brandish the weapon used in the spell’s casting and make a melee attack with it against one creature within 5 feet of you. [...]

The only weapon used in the spell's casting is the material component; no other weapons is required in order to cast the spell. If they wanted it to be any weapon, they would have worded the spell differently.