There are plenty of great removal spells just like this that can fit the flavor of any deck that wants them (Eaten Alive for a zombie deck, for example)
Wrathing the board is just going to leave the midrange deck in a stronger position
You'll still mill cards equal to the number of rad counters you have, and you'll still remove a rad counter from yourself for each nonland card you milled, but instead of losing life, you'll gain 1 life for each nonland card you milled
As my advertising professor liked to say, "You aren't selling them a product, you're selling them a solution to a problem." My mother, now retired, was a psychologist, and I always had a fascination with psychology
If you want your card shipped with a tracking number , upgrade your shipping
Again, it depends on when you will be getting it it could be within 2022 if you are in North America, otherwise expect it in early 2023