Welcome to Four Daily Wins, your one stop reference for how to get the most bang for your buck in the Magic: The Gathering Arena Free to Play Experience.
Midweek Magic Is Worth Your Time
The Bottom Line: If you can build a reasonable deck for the event, play in it.
But Why?
Every week, Arena holds a Midweek Magic event that runs from Tuesday through Thursday. The event is always free to enter, and each week it showcases a quirky, unusual format that isn’t normally available on Arena. Some of them are Phantom Limited (meaning you open packs to build a deck, but you don’t keep the cards), while others are All Access events which allow you to build any deck you want within the bounds of the format, but most weeks, you’ll need to put decks together yourself.
Why should you play in these? Because your first two wins in this event will each give you a Rare ICR (Individual Card Reward), and getting these is nearly the equivalent of a free pack.