Is it a cool concept but the execution not so much
no very common to happen In multiplayer Unless you intentionally do it
side hook is weird You had to Decrease the slider To create a clash and not both getting hit
asymmetrical clash enables Somehow still hit each other when both charge in
hope they make it easy to clash so that some random can discovered this and talks about it

gut punch work well but you need both players guessing The other player pick blocked which is very uncommon it's risky
The Gastric Blaster clash pretty cool(Trigger by both doing gut punch)

There are only two special clash that's it
go test it out in single-player or something