demonstrate mtg cards This is a card I could see sliding into certain A2A Old School decks. It kind of seems like it does nothing or even helps your opponent, but with a little setup Demonstrate - MTG Wiki

If you do, draw two cards

Even some copies are fetching a $20 cost with more recent sales

One other subtle strength here is the degree of control you can have over exactly when cards are milled, and how many (assuming you have painlands or other unrestricted self-damage sources)

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I already play Gorilla Shaman in some decks to slowly chew through Treasure tokens, but it certainly finds Banana tokens much tastier