Focus Caster — +2 Spell Skills + Spell Damage + ES (YouTube 0.5)

A hard-difficulty crafting guide for Omen Focus (Foci). Targets: (75—89)% increased Spell Damage, (54—59)% increased Critical Hit Chance for Spells, (92—100)% increased Energy Shield, +(81—90) to maximum Energy Shield. Sequence: Orb of Augmentation → Regal Orb → Exalted Orb → Divine Orb (6 steps). Recommended for Endgame, caster, es-based builds. Updated for patch 0.5.3.