Definitely Kobold Geomancer. It was played in pre-Gadgetzan Midrange Shaman and was pretty decent. The card draw is irrelevant with double Mana Tide Totem.

Generally, Life Tap and Steady Shot for midrange matchups. Fireblast, Totemic Call, and Reinforce are ok. Armor Up, Lesser Heal, and Dagger Mastery are all the worst. Dagger Mastery is the least bad of the last three, though.