Stormal

Windy weather is what makes Stormal affordable. A Unique tier aura from Era 1, it sits at 1 in 90,000 normally and 1 in 30,000 in the Windy biome, roughly 30,000 rolls at 1x luck during wind or 3,000 at 10x. ep1k_sol made it, the wiki lists it as obtainable, and the in-game text calls it an enormous storm raging around you. Stormal : Hurricane is its much rarer mutation.

Look for the cloud. A stormy cloud sits above the head with wind particles streaming up toward it, a gust swirls around the player like a tornado, and small white snowflakes drift upward in the same current. The cutscene starts black with a dropbeat noise that continues all the way through; a grey star expands in the centre and the edges glow grey, and it plays the same even if the roll came from the native weather. The wiki lists a crafting recipe with Windstorm Device, Biome Randomizer, Godly Potion (Zeus) and Combinator, one of each. It has no active ability.