Yeah, I tend to use Ryuker as a replacement for pipes, but the casting animation prevents usage in a situation like this. I like fighting my way out, actually makes mines more challenging
As for the part about Falz's blue projectile attack, I think
it hits multiple times online if you can keep standing after the 1st hit, so I'm not sure a 'mate would help much. I haven't tested this though, so I may be wrong. All I know is that if you can stay standing after the projectile hits, it's likely you'll get hurt/killed by the remnants of the volley.