Clockwork planet 5
Medicine 2
Self defence 3
Mechanical engineering 3
Prosthetics 1
Infrastructure 1
Aid management 1
Area management 1
Orikin perpetual motion machines 1
Electrical engineering 2
Horizon mechanical animals 3
Teaching 2
Music 2
Musical instruments 1
Clockwork weaponry 2
Interdimentional travel 5
Sacred gear creation 2
Soul surgery 1
Fictional metallurgy 2
DxD heaven's system 2
DxD Angelic programming 3