That's a lot more than you'd get out of most self-mill enablers like Satyr Wayfinder
One way to beat that is to overwhelm an Infect opponent with removal spells, but this is often card-intensive and forces you to keep mana open
So, what do we get for running a whole lot more than just four Hare Apparents in our deck
Sacrifice after III.) I Create a 2/2 blue Shapeshifter creature token with changeling
In order to prevent the cards from covering every square inch of the floor in your kids room, you may want to set him up with a [easyazon_link identifier=B01BRGTWOA locale=US tag=maminthenow0e-20]binder[/easyazon_link] and [easyazon_link identifier=B005JCL05I locale=US tag=maminthenow0e-20]plastic sleeves[/easyazon_link], also to protect the cards
The phrase magic the gathering arena tiers sounds simple until Arena starts throwing Roman numerals, monthly resets, Mythic percentages, reward bands, Bo1, Bo3, Limited rank, Constructed rank, and deck tier lists at you