How to add slash effect into Hack and Slash action game?

So we are working on a game with my friends and we’re at the point when we wanna add slashing effects, something like this: Metal Gear Rising: Revengeance Gameplay (PC HD) - YouTube
When he slashes, its like shockwave following the sword, and when he actually hits someone/thing, there’s lighting effect also. I’ve been thinking it’s particles, but i dont think that will be enough, is there some kind of trick to this? Any advice would be appriciated.

Thanks in advance.

Try trail renderer. Also, yes, particles would do it. It just depends how good you are with particles :slight_smile: