If you duck without blocking low the shoulder charge whiffs completely and you could punish it hard with an uppercut or fast special. While you're ducked like this you could also avoid arrows. So basically from mid distance his only option will be to lightning you which if you play aggressively and have some reactions will be no problem.
When NW is waking up if you duck at mid'ish distance without blocking you f**k Nightwolf over pretty hard. Like this you could midgame him into getting a free jump in while he's waking up.
And dude, I'm sorry if this comes off the wrong way, but this IS a complaining thread. You might argue that it's not, but it pretty much is. You could of asked people's suggestions on how to beat it or started a thread to find out ways to counter Nightwolf, but you made the "nerf please" topic and it's pretty much no different from the "nerf Liu Kang" topic that's near the top of the list right now too. In your posts you've gone through all the motions that are common: you mentioned lag, you said the word spamming, and you asked for a "fix". It's complaining and digging for excuses instead of really trying to search for that solution. You beat other "spammers" in slight lag, why is this one any different.
We're all guilty of it sometimes its okay.
The shoulder charge is far from needing to get fixed. Honestly now.
From what you're saying I don't doubt your a good player but just because you lost to someone that abused you because he realized you dealt badly with his tackle doesn't make the shoulder charge any greater of a move. Like other things on other characters you just have to constantly be trying to bait it out of him. The player you fought had the win/loss ratio he has because he knows people don't commonly know how to deal with the shoulder charge and he abuses it wisely.