Jacob's undead flesh armor suit is composed of the zombies that swarmed him and Jayden, and even though she was beside him at the time, Jacob did not absorb her skin into his armor. The only reason we don't see her in today's comic is an artistic choice. I wanted today to focus on Jacob and his (albeit mysteriously interrupted) necromantic comeback. That, and I felt leaving Jayden's fate still uncertain adds a bit of drama. At least for one more day.
As for Jacob, he's always been a very physical necromancer. From his first appearance with the formation of a bone sword, he hacked and slashed his way through The Chosen; to The March Across Maltak where he beat the hell out of Adrak before mortally wounding him. This seems like a far cry from enlightened Jacob. I wonder what's wrong with him?
That's all from me for now.