The First Charge Blades - The Dead Ones

The dead ones take ten heart beats for the wielder to summon and it does vary depending on how quickly your heart is beating, which i think is really interesting. They have ten heartbeats where you are less defended. Like if you smack somebody's blade arm and cause them to drop their blade,. Here's characteristic of the blades, it disappears. It goes back into mist tha, is how they describe it. You have to wait another 10 heart beats for it to appear back in your hand again - a delay wheni could otherwise want that blade instantaneous. But at the same time, there are moments in both those first books, the storm light archive, where the ten heart beats is