Probably an easy question but I could not find the answer for it anywhere.
Our group have the Heroes of Fallen X books, the Dungeon Master Kit and the Monster Vault and although the DMK says that you use Melee Basic Attack to make an unarmed strike it doesn't say anywhere which die to use for the damage (the same is true for improvised weapons which are also mentioned)...
So what is the the damage die of a punch or kick?
PS: Talking about die, what is the damage die to initiative rolls? None of the books say it, I guess it is a d20, but I've seem people using d10.