Immortal Flying Pig
Duskbringer - Lv.120
Damage immune with head arcana. Around 36 points in Q3 for permanent flying. Then scale Q1.
Requirements: Head Arcana, Body Outland Cuirass, Glyph of the Wraith.
Rest is optional.
Have some points in E2 for additional instance damage defenses. Cast E before terrorize ends.
I chose Harvesters for Q3. A perf Q3 roll on weapon works too.
Gloves for ghost elemental damage.