Store Question (noob alert)

So I’ve got roughly 300 hrs in DF operations and I’ve never purchased delta coins or bought anything from the store…

I saw they released the new Sea Gleam axe in the store. So I bought $15 worth of delta coins because I assumed that would get me the axe. The axe is based on “draws”…? New to this

Well I used all $15 worth of coins plus the 1200 delta tickets that the game gave over the past week and…

Is this a scam? According to this draw system…I am only 20% of the way to actually buying the axe…so if my math is mathing…that means this axe skin is gunna cost close to $100 to even get?

Am I losing my mind? Please help this store noob understand. I’m used to COD. But in game currency…you buy a bundle and done. Is this the same with Mandlebricks? Never understood that either. lol 😂