If the average price somehow increased to $3, it would be profitable to just crack boxes (and even more profitable than usual because there's no risk or variance, since the basic land is guaranteed in every pack)
Heritage Reclamation The only common that manages to slip into my list is Heritage Reclamation, a card thats flexible enough
(If a permanent with a stun counter would become untapped, remove one from it instead.) Whenever you tap one or more untapped creatures your opponents control, draw a card
The mono color land cycle are mostly good enough to fit into any mono color deck
After all, uh, you've got to be fairly heroic to willingly run up 59 flights of stairs to save your friend
Kimahri copies exactly what was printed on the original creature, with the listed exceptions (unless that creature is copying something else or is a token