What started as an activity to lift Sig’s spirits this holiday season has evolved into a valuable lesson in MTG finance. This week he shares four valuable takeaways from his MTG advent calendar as he passes the halfway point.

Follow along with Sig as he opens a booster pack every day from December 1st to December 25th. You can watch a pack opening video for each day and also track the value of the cards opened using the Trader Tools collection feature.