The Helltooth starter build will be fairly similar to the leveling and fresh 70 build, keeping its rotation and general strategy with minor adjustments. You will be swapping out Haunt for the Helltooth centerpiece, Wall of Death. Wall of Death is one of the abilities that apply the Necrosis effect of the set, in turn DoTing and slowing enemies from the 2-piece Helltooth bonus and reducing incoming damage by 60% from the 4-piece bonus. More importantly, Wall of Death alone triggers the 6-piece bonus of the set, empowering a good deal of your summons and Mana spenders to a point that will trivialize most in-game difficulties. You have two viable rune choices: Fire Wall will deal the highest damage, which is preferable early on; when you push against your gear's limits, or at any point that you feel lacking Toughness, you can change to the rune Communing with Spirits for another 25% reduction of enemy damage. The other swap in the beginner Helltooth build is in your passives; since the set empowers your Summon Zombie Dogs and Gargantuan more than enough, you will abandon Fetish Sycophants and buff up your active summons with the passive Midnight Feast.