Expand the repertoire of your system by using subtle skills and principles such as:

Deception
(Fakes vs. Feints, Dissolve Your Own Power, Framing, Invisible Blocks, Deceptive Distancing)

Disengagement
(Offensive/Defensive)

Displacing the Joint

Double Shifts

Double Taps

Drawing
(in Aiki, in Karate Freestyle)

Drop from the Top