"But... But I want to be a big karate cyborg... ;_;" - Nik Hasta
"Get off my lawn! ...on this forum, that just makes people think of Cyclops." - Sharpandpointies
"...makes me think the Night King just says "Screw the rules, I have magic money" when it comes to physics." -Captain Morgan
There's an asterisk or two on Darkshine hitting Garou. He only landed one shot on Garou when he was awake, and it was from basically launching himself at Garou from high speed, in tight quarters, when they were standing there talking to each other. Garou also tried deflecting it instead of dodging and it failed. He's also not immune to getting hit when he gets cocky.
When Garou actually pours on the speed, he is blitzing Darkshine preeeetty hard. It is also hard to gauge the balance of his condition with the constant injury but also power growth.