On the Plane Shift: Innistrad material, it mentions that
Weapons cut from living wood are particularly effective against vampires, though any weapon can harm or kill them.
But I can't find any source about what living wood is. My guess is that it's some special kind of wood from some tree, but that's just a guess.
So, what is living wood and does it has any specific properties?
Best Answer
Information about Innistrad is more easily found in resources about Magic: the Gathering, since the world originated in that game. The article “A Planeswalker's Guide to Innistrad: Stensia and Vampires" says this about living wood and vampires:
From this, we can surmise that living wood is wood that's less than a few days cut from its living source, or wood that's part of a living-wood creature, like a dryad or a treant.