Jack

Jack is a pumpkin doll and Matilda Matisse's spirit ally.

About
Jack has the power to launch Knives out of his body.

Appearances
Jack has made short appearances like Chuck and Ashcroft. He made an appearance in reincarnation 1's title page. Then he was on Matilda Matisse's back when her, Kanna Bismarch, and Marion Phauna are arguing. He is also entertaining Matilda on the plane to America. He was with Matilda when they are enter the Patch Village. He fought T-production in "Hana-Gumi". He also fights Tamao Tamamura and Tao Jun.

Oversouls and Attacks
Trick or Treat: Jack runs toward the opponent reveals his chest and hopefully capture and shred the opponent inside

Anime/Manga Difference
In the anime Jack was given a Massive oversoul that looked like a big scarecrow with a very large Pumpkin head. Matilda could not control the full power of the oversoul and lost control.