mtg card box MIXPOET Deck for Cards - Large Size, 100+ Cards Capacity With the proven cabrio system MTG Card Deck Box by

Phyrexian Arena gives you an extra card each turn at the cost of 1 life, but Sheoldred immediately cancels that out by gaining you 2 life

Plus, it can give you some insight against an opponent who is using one of the starter decks as a base for what they bring to the table against you

Is TCG Player really selling this for like half price

You could also go down the group hug route with cards like Rites of Flourishing and Ghirapur Orrery

Fair warning: this infection is liable to spread

Emry, Lurker of the Loch Emry, Lurker of the Loch is an efficient bit of self-mill with recursive potential, but this card requires a high concentration of artifacts, making it one of the narrower options on the list