Without a legendary creature, a plainswalker or something fun to push the action, the value of the beginner box dimiinishes very quickly, and just like Trivia board games, you will soon learn the patterns and cards, to the point where you can always win with ease
Ghoulcaller Gisa is the real star here, though
Balance your delve usage to avoid depleting your graveyard too quickly, paving the way for a mighty surge when the time is right
Thankfully, you can still snag the New Phyrexia printing for around $3, so it isnt prohibitively expensive, but at this point it's probably worth digging through your bulk to pull out any copies you have sitting around
And whilst red has some of the worst options of any color in this regard, you should absolutely still pack them in your deck
a recurring threat that dodges commander tax, provides card selection, and can amass an army on its own while providing bonus graveyard disruption