Help buying MTG cards for hubby

My husband bday is coming and I want to surprise him with a box of the things he likes (mtg stuff). I already got him dices, a tcg shirt, the mtg reusable tokens, and some other stuff. I want to to buy him also some magic cards but idk which one are the best and the newest ones. He usually plays commander. Idk what that means it’d hard for me to understand the game it was my first time after I married him hearing about MTG. Please help me! I want to give him a bday gift he deserves!! 🥲🥲🥲🥲