Based on the pattern of Drink of Vitae Rk. II, my theory
Drink of Vitae Rk. II, Level 71 Chance to create lifeshard, decrease hitpoints
Rough Paper
Quill of the Arch Lich
Consuming Thickener
Ink of Pain
Ink of Rainbows
Luclin's Ink Addative
Umbra Orb Rk. II, Level 71 Creates an Umbra Orb, decrease hitpoints
Rough Paper
Quill of the Arch Lich
Consuming Thickener
Ink of Pain
Ink of Rainbows
E'ci's Ink Addative (Direct damage: Ice)
Does not combine
Drink of Vitae Rk. II, Level 71 Chance to create lifeshard, decrease hitpoints
Rough Paper
Quill of the Arch Lich
Consuming Thickener
Ink of Pain
Ink of Rainbows
Luclin's Ink Addative
Umbra Orb Rk. II, Level 71 Creates an Umbra Orb, decrease hitpoints
Rough Paper
Quill of the Arch Lich
Consuming Thickener
Ink of Pain
Ink of Rainbows
E'ci's Ink Addative (Direct damage: Ice)
Does not combine
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