Talk:Sigurd/@comment-36660379-20180821021959/@comment-33628324-20180907201415

''○ Dragonkind Modification : EX Due to him swallowing a dragon's heart, he has achieved the ultimate Self-Modification. A dragonkind mana reactor core is formed, thus it is possible to act almost independently as a Servant.''

It's literally stated in his bio kiddo.

Basically Indeopendant Action EX + a semi Unlimited Mana Works