Former Pirates King, Roger, dominate Grand Line and conquer almost all parts universe of One Piece. in d` journey, they (Roger`s crew) were never caught even by enormous power fusion of WG and Shichibukai. despite, D. King gave himself in after facing limit, he`s undisputed n damned strong. i wonder what ability deliver him to his peak.
That might be:
Cosmoss (Ultimate Logia that absorb all elements)Divine shield (Unvulnerable)Soul breaker(can damaged foe`s soul, even take death)Eye of aura emotions (create visions and make illusions of what foe`s most feared -could drained mental- and emerged in situation foe`s can`t resist and weak of)Death (sink foe`s lifetime by cursed and pain)Poison(really terrible illness that 99% cause death it takes damages to all type of devil fruits,, -like virus ebola in human!-)don`t eat devil fruits(forge by his heart of limiltless hope of life)Others idea (please submit ^.^)