The power to sync up with objects and people to use one's apex/full potential.
User can sync with people or objects to use their full power, merging their soul, mind or even world with someone or something elses if the user is powerful enough.
- Alpha Drivers (Ange Vierge)
- Fullbringers (Bleach)
- Soul Reapers and their Zanpakuto (Bleach)
- Pesche Guatiche and Dondochakka Birstanne using Cero Sincrético (Bleach)
- Ryuji Kisaragi (Dragon Crisis); via Engage
- Tommy and Malina (Heroes)
- Shigure Kousaka (Kenichi)
- Megamen (Megaman ZX)
- Hecate (Shakugan No Shana)
- Exorcists and their Innocence (D.Gray-man)
- Meisters and their weapon(s) (Soul Eater)
- All Players in the Reapers' Game (The World Ends With You)
- Humans with Brijies (Guardians of the Lost Code)
- Ash and Greninja (Pokemon)