mtg sorin commander deck Planeswalker : Core Set 2020 (M20) — Twenty Sided Return each card put into a graveyard this way to the battlefield under your control. Sorin, Lord of Innistrad Emblem

The biggest downside here is if an opponent wipes the board, you not only lose your board state, but your draw engine

Your cards will be returned in the same packaging you sent them in, so that is up to you

Mill never had the right support to dominate any format, and if the milling failed, the mill deck would be too far behind in the game and lose but in Commander, even with 99-card decks, mill might work with creatures like Bruvac, the Grandiloquent around

This wizard still isnt a slam dunk, but it only costs 4 mana, it creates a body as it enters, and it makes your board much more scary if you have other vehicles the turn it comes down

The Ozolith gives you a non-creature permanent on which to store your counters and is a good mover of counters as well