So... I'm a relatively new GM and and I am not quite up to speed with many of the more intricate rules. The issue I am asking about is that in a game a few days ago, my characters were fighting a psyker who cast bio-lightning at them. One of them asked that since it was "lightning" could he deflect the attack by tossing him metal knife at the psyker and redirecting the bio-lightning. I thought this was a bit of inspired thinking and because I couldn't find anything to the contrary through a cursory read, allowed him to do it. My question is... Does this correspond with the rules?

Thanks

VoidKnight said:

I have some problems with that idea:
- If the bio-lightning was electricity following its natural path, it would be a rather useless power as it will keep grounding around the psyker. So the psyker must have unnatural control over how it moves.

- If you were in a situation where electricity was arcing across a few meters of air, sticking an ungrounded piece of metal in the way would just make the arcing easier. It would not deflect it.

- How are the PCs reactions fast and accurate enough to get the knife in the path of the lightning ?

There is nothing in the RAW about trying this. Personally I let players dodge it like they would dodge a full-auto burst.

No, there are no rules for redirecting lightning. However you can dodge psychic attacks so if the knife thing was just a descriptive dodge then its all good with the rules.

With a cool enough stunt I would let players stop an attack like that even without a dodge, but I would try to keep it very limited. If it's easy to to every time I wouldn't allow it (except for pure description around an normal dodge that is). If throwing a knife causes an auto-miss, then everyone will always cary scrap metal on them to deflect lightning with since its so easy.