The Skydrop Storm is composed of 5 different items that minters were able to choose in The Prologue.
Sprite owners are able to claim their item, that they themselves chose for that respective Sprite on their adventure. Alternatively for those that bought Sprites on the secondary market, they will be claiming an item based on the decision of the person that minted the respective Sprite.
Embark on The Prologue here to discover which item you would choose: https://spriteclubnft.com/prologue