Sol'Kanar the Tainted For Sol'Kanar the Tainted to work as a commander, you need to pack a stack of exchange cards like Role Reversal so you can get them back, or you need to be able to really work with an ally or to negotiate who gets it
Like I said, booster boxes are expensive
Monastery Swiftspear Monastery Swiftspear has pretty much always been relevant since being printed nearly 10 years ago
Mischievous Catgeist // Catlike Curiosity currently starts at $ 0.12
Even if you arent building around dinosaurs specifically, there are plenty of cheap creatures with high powers, like Atarka Efreet, which become harder to kill thanks to Zilortha, Strength Incarnate
Nova Hellkite This acts as the backbone and top end of both the mostly-mono-Red aggressive decks and the Boros Dragons deck