Blur instinct is inspired by "ultra instinct" but it's lower form and the only purpose of it it to dodge any attack no power up or anything just pure dodge ability.
It's a passive ability that when receiving an attack on hit your body will go blurred and like after image will move to dodge.
Like kamui but after that it will instinctively move to dodge that place that already attack. And by instinct is you don't have to know the attack you're body will move it's own.