Vibrava in depth
The antlion in its second act
The design for the whole line comes from the antlion, the Myrmeleontidae, not from the dragonfly it is constantly mistaken for. The larva digs a funnel in the sand and waits at the bottom for something to slip in: that is Trapinch, with its jaws and buried lifestyle. The adult, winged and awkward in flight, is Flygon. Vibrava is what lies between, the stage where the wings already exist but still do not work.
The name says it plainly. Vibrava combines vibration with larva, and the Japanese ビブラーバ is the same word unchanged. The French name, Vibraninf, replaces the second half with nymphe, the nymph, which in entomology is exactly the stage it represents.
An insect that is not Bug-type
It has four legs, antennae, membranous wings and the Bug Egg Group, yet its type is Ground/Dragon. The move list keeps the contradiction going: Bug Buzz at level 28, and Struggle Bug, U-turn and Bug Bite by TM, all Bug-type moves on a Pokémon that receives no bonus from any of them. The obvious comparison is Nincada, the other buried larva of the generation, which does keep the Bug typing and only adds Ground in its first stage.
Levitate on a Ground-type body is the other oddity. For Vibrava it makes narrative sense — it does not touch the ground, it flies badly but it does fly — and it also turns the species into a rare case of two complete type immunities.
The ten levels it lasts
The Vibrava stage is short, so you have to decide what to do with it. Upon evolving, it immediately learns Dragon Breath, and during those ten levels it reaches Earth Power at 38 and Earthquake at 44, just in time. Everything else in its level-up list lies on the other side of the boundary: Uproar at 50, Dragon Rush at 56 and Boomburst, with 140 power, at 62. Anyone determined to cancel the evolution with the B button can have a Vibrava with Boomburst, which is a curiosity and little more, because by then Flygon has a twenty-level stat advantage.
Its Pokédex entries are also among the few that describe an attack having effects on people rather than on other Pokémon: the waves it emits give people headaches. The acid it uses to dissolve its prey appears in two different generations, always tied to the same thing: eating nonstop to finish building its wings.