Hi! I've just discovered Pathfinder and I think it's amazing! An advice, though.
I'm taking the Elemental Spell metamagic feat that allows me to change the type of damage of the casted spell for a once selected energy type. It's in the APG page 158.
Since I obviously want to take the feat only once and considering I'm a blastish sorcerer in a campaing in the Underworld, which energy should I choose? Which is the less frequent elemental resistances among monsters?
Since I'm already asking... Wall of Stone or Wall of Force?
Tank you all in advance!