- GARGANTUAN: Humongoid
This is your main damage dealing ability, the Gargs deal massive damage and also cleave for some AoE clear. You always want to be buffing the gargs with gear, for example, Garg damage % on chest/Cold damage on bracers. The AI on the gargs isn't the greatest, the best way to maximize your damage is to recast them right in the middle of a group of mobs that you've gathered together with Piranhado. They also get a bit squishy 75+ making the Enforcer gem pretty mandatory.
- WALL OF DEATH: Communing with Spirits
Communing with Spirits proc's your 6 piece Zuni and reduces incoming damage by 25% from affected enemies.
- ZOMBIE DOGS: Leeching Beasts
A good bit of your sustain comes from the Life per Hit from the Leechings Beasts. Life Link dogs are an option for more damage reduction, as well has Burning Dogs for more AoE Clear, and Chilled to the Bone dogs for more single target damage. It's possible to drop Convention of Elements and run the Tall Mans Finger for a big zombie dog, if you do this I'd recommend Burning Dogs for the rune.
- PIRANHA'S: Piranhado
Piranhado is very important to the build, paired with Grave Injustice, you're able to group mobs close together to maximize the damage from the Cleave from the Gargantuan's and also the Area damage proc'ing from the pets.
- SOUL HARVEST: Languish
Languish is pretty mandatory to stay alive, paired with the Soul Harvester and Lakumbra's Ornament, you're getting 100% armor, 60% damage reduction, as well as 30% more Intelligence.
-SPIRIT WALK: Jaunt
This will save you against nasty champion and elite affixes as well as give you a bit of movement speed when moving inbetween groups of enemies.
- MIDNIGHT FEAST
Midnight Feast is mostly to buff the damage of the Gargs but it also buffs the damage of the Zombie Dogs, as well as gives you 1 extra zombie dog.
- SPIRIT VESSEL
Spirit Vessel for a second life, the higher you go in solo GRIFTS, the more needed this is.
- GRAVE INJUSTICE
GI is mainly to reduce the cooldowns of Piranhado/Spirit Walk which will keep you alive. You also get more slows out of Soul Harvest Languish and Wall of Death.
- SWAMPLAND ATTUNEMENT
Toughness per enemy within 20 yards, this effect gets amplified by pick up radius on gear, making it a very valuable secondary stat.
- CONFIDENCE RITUAL/PIERCE THE VEIL
Either of these is fine. Confidence Ritual will give you more damage, but you have to be in melee range basically. Pierce gives you less damage but you're able to stay out of harms way.