
Well! Tom Bombadil is a card in the old forest after all. He might not be a player card but at least he's still there! (I personally prefer him like this)
Looks like even though he only lasts the turn because he makes you shuffle the discard pile back into the encounter deck there's no limit to how many times he may pop up.
He provides an automatic +3 boost to questing and can then attack for 3 or defend a nasty attack and survive with 3 defense and 6 health.