New Exploring Eberron Item - Resistance Breaker Weapon attunement

Hi,

In the book "Exploring Eberron" there is a weapon that allows resistances to be ignored for one round. In the book it does not require attunement, but on the DnD beyond website and character sheet it does.

https://www.dndbeyond.com/sources/dnd/exeb/chapter-7-treasures#MiscellaneousMagicItems (The page of the book)

https://www.dndbeyond.com/magic-items/11122700-resistance-breaker (The items if you follow the link)


All the other items listed clearly say "Requires attunement" except for these, so I would assume they do not, but DnD Beyond lists them all as a requirement.

Which is correct?

Thanks

I'd say the book is right, and the implementation in D&D Beyond isn't.

EDIT: attunement was also not required in the 2020 book published on DMsGuild.

In the book Resistance Breaker is an Artificer Infusion on a simple or melee martial weapon that doesn't require attunement like some others such as Bane Weapon so as TarodNet said D&D Beyond is wrong.