If you plan on playing with Treasures, Clues, Food, or just artifacts in general, Id pick up as few copies while theyre still affordable
Abandon Attachments can fuel a lessons in your graveyard kind of deck, and its the main theme of blue-red in the Avatar set
Jerren, Corrupted Bishop / Ormendahl, the Corrupter There are better ways to manage the sacrifice creatures, lose life, gain cards, gain life, repeat structure of black decks, but Jerren, Corrupted Bishop is one of the more flexible versions of that
The Combat Tutorial Magic card art also directly homages one of the earliest battles in Final Fantasy X
2/2 Rebel creature, for Hexgold Hoverwings and Mirran Bardiche