So, in the same vein as prism and spinner, then something like 'drum' or maybe 'lyre' to be more eldary. Chisel is another path I went down, especially as a chisel has the same effect on stone. Is there a word that describes what a sculptor does to a marble slab? It's hard to come up with a word that evokes the violent shaking that occurs when the gun fires. It's like that scene in Jurassic Park when the T-Rex makes the surface of water tremble. We need a cool word for that.ÂÂ
In any case, my point about using a non-aggressive word is that it risks coming off as silly. Prism and spinner work, for the most part, because they come from an official POV. I mean, honestly, spinner? I get that the word is being used in the textile sense, but the other meanings of the word can make people imagine some pretty goofy things (more like a death wheel).
Obviously, for the name to stick while at the same time be unofficial (for all intends and purposes), it has to be really good. Several people obviously have problem with hammer, I understand that. And hey, this isn't astronomy, so it's not like I get to name the thing whatever I want.
And as for 'rending' not really matching 'hammer' I don't think that is an issue. Fire Prism makes no logical sense either (it's not a plasma or flame based weapon), and night spinner is a stretch (a one-template formation hardly supports the claim that the monofilament clouds block out the sun).
Come on, is Rending Hammer really that bad? The gun rends the ground apart, when it targets you it feels like being hit with a hammer, and it's an oblique referrence to known eldar mythology. It works on so many levels
Doom Caller is another name that grew on me. It cheats a bit because I stole the doom part from the old doom weaver. It's a bit awkward at first, but it slowly grows on you. I had kind of intended for that to be the name of an EoV-sized sonic tank, but I've gradually cooled to the idea of more of those.