mtg signed art cards phyrexia all will be one Phyrexian Arena (Extended Art) [Phyrexia: One] Atraxa, Grand Unifier Art Card}

Depending on how the format breaks and where you want edge, you could potentially maindeck a card like this

Being the best at its role and having this good of a range means this is one of the most commonly seen things to be cheated in and one of the more sought after in draft

You could get a pack of your choice from the Arena store for 1,000 gold and add eight cards to your collection

Youd have to go hard on milling yourself, at which point there are probably stronger payoffs

This deck should bo quick enough in order to maintain the draw in the early turns with a lot of deck, but there are some burns that are very strong and quick, and it is very arduous for a mill deck to win