The main strength of DC is his run with ball dribbling. He can do high speed dribbling. to bad this kind style of play is the main reason he get recurring injuries.
High speed sudden turn, explosive run give so much tension, let alone hard tackles from opponent to stop his run
And the reason why it is best to use him as sub, because with tire opponent leg he still faster than opponent even if he only in 70-80% of his top speed.
He probably does not aware of that, but that condition minimilize risk of self hurting his feet