Does Death Knell stack with itself?

[biorph]

Someone suggested this to me and I'd be interested to see if it worked. Could someone death knell 10 creatures successively and then let off a Blasphemy at caster level +10, which would be enough to wipe out most parties assuming a balanced battle to start with? yes yes I realize the practical implications of applying this, but I'm just wondering if it would work from a rules standpoint.

 

[Staffan]

Someone suggested this to me and I'd be interested to see if it worked. Could someone death knell 10 creatures successively and then let off a Blasphemy at caster level +10, which would be enough to wipe out most parties assuming a balanced battle to start with? yes yes I realize the practical implications of applying this, but I'm just wondering if it would work from a rules standpoint.

Unless it specifically states otherwise, no spell stacks with itself or similar spells (e.g. a hypothetical Greater Death Knell wouldn't stack with Death Knell either).

 

[Endur]

If you search, you will find other threads on this topic. Best answer is no, that the same spell does not stack with itself.