I was very disappointed at the lack of a postgame battle with him, other than random Challenge Cup encounters where he doesn't actually talk
39 copies were given to competition winners, with another two copies of the rare card surfacing in the collection of Pokmon Trading Card Game co-creator Yuichi Konno in 2020, meaning that only 41 copies of the card are known to exist - with just over half that number having been professionally graded
It has to be here
More recently, there have been several waves of Elder Dragons, five new ones in Tarkir, redesigns of the original five in Core Set 2019, and a collection of college founders in Strixhaven
Decorum Dissertation looks like the weakest of the bunch, but I may be wrong
Or you could use the -2 ability (going down to one loyatly) to mill two cards, then you return a creature card from your graveyard to your hand