Elves should have giant bombardier beetles in a symbiotic relationship. The beetles assist in the air raids and provide lift for elves with damaged gliders, and they are allowed to lay their eggs in the fresh corpses of the elves' foes in return. This has an added benefit: Any enemy force who tries to retrieve their deceased from elven camps is in for a nasty surprise in form of giant beetle grubs emerging from their fallen comrades' bodies.
Elves believe it's appropriate for nature to take its course, so it is not considered disgusting to allow the grubs to feed on even the elven dead. In fact, this is considered a honorable burial reserved for elves of great military accomplishments, the idea being that the elf can serve even after his death by providing his very body as rations. Even the elven goddess of death is depicted as an amalgam of various ground beetles, her most distinctive feature being the sharp, large mandibles of a tiger beetle, with which she reaps the souls of the deceased.
Fuck spiders, bombardier beetle elves are the best. In fact, honored priestesses of that death goddess should be driders, except with bombardier beetles. So instead of half hot drow girl and half giant spider, you have half hot elven girl and half giant chitin-covered engine of burning hydroquinones. And after the priestess is done blasting the elves' foes with death from above, she brings over a shitton of giant beetles to convert the corpses into new soldiers for her ranks of giant beetles.