Old Man Willow is another Treefolk commander, but is a lot more flexible, caring about lands and sacrificing permanents over the straight Treefolk strategies of Fangorn and Quickbeam
Doc gets the most value from an already empty hand, since you dont have to discard anything, and because he costs two, he can also activate Stitch, Rock Stars ability, turning him into a two-cost 1/3 that lets you draw three cards
We've seen instances where you need to discard first and then draw ("Rummage"), uneven draws and discards (e.g., Bazaar of Baghdad), and Looting effects that give you an additional bonus
Sealed boxes have commanded impressive prices, with Heritage Auctions seeing sales between US$187,500 and a record-breaking US$237,500
You can point Counterspell at them as normal
Most experienced alter artists will have a good idea of how to retain a card's tournament legality