Some people are fast. Some people are very very fast. Some of them travel so fast you can't even see them move.
And sometimes these people will fight so fast you hardly even get to react. That's a speed blitz.
Fights like this can end before bystanders even know it has started. As the name suggests it's more being hit by lightning than getting in a brawl. A common version of this in anime is to [...] [tvtropes.org]