Unlike melee builds, your personal damage stats (Strength/Dexterity) are secondary to survival and mana.
Go build your army, Engineer. The Alchemist won't know what hit him. torchlight 2 best engineer summoner build
bonuses found on gear. Your job is to maintain your buffs, keep your "bots" active, and stay alive using high-tier defensive skills. Essential Skill Tree bonuses found on gear
Typical skill priority order (levels 1–100, concise) 1–20: Max Healing Bot → Gun Bot → Spider Mines early; pick up Forcefield as soon as available. 20–40: Finish turret bots (Sledgebot/Blast Cannon), boost Forcefield and Bulwark. 40–70: Max remaining Construction skills, raise Dynamo Field/Shield Bash to 1–5 for charge/control if you use them. 70–100+: Max Forcefield, Bulwark/Aegis passives, and any pet-summon spells; fine-tune utility skills. 20–40: Finish turret bots (Sledgebot/Blast Cannon)
Avoid Strength and Dexterity — you are not attacking directly.