Lol.
Sap-capping such "nodeguards" for a year now. Yeah, all because Scoundrel is OP, why else?
To not get sap-capped:
In CW or Voidstar (8-sec cap): don't break sleep dart. Due to his GCD after sapping you, you'll have 1.5 seconds to prevent the cap.
In Hypergate (6-sec cap): stay far away from the pylon, use LOS. But tbh it's very hard to solo-defend Hypergate as a non-stealther vs a good stealther. Leave a stealther or 2 people to defend.