>>29873145Swablu and Altaria are two of the five non-Fairy types to learn Moonblast. The other three (Oddish, Lunatone, and Cresselia) all have an affinity with the moon (in Gen II, Clefairy, Oddish, and Umbreon were the only lines that could learn Moonlight)
I never thought they would actually do Dragon/Fairy Altaria but there were a few hints