Give it haste with its first activated ability so that it can start dealing infect damage right as it enters the battlefield
ACE Grading (Ace): Ace Grading has excellent security protocols that help protect the buyer from fraud
For example in this deck, with all the deck build around Otharri, Suns Glory and the many creatures with activated abilities, the cards that are activated abilities cost reducers are as important as ramp, or even more important on same cases
As such, the base set is the most desirable for adults with money looking to recapture their youth
Another similar Mardu creature is Terra, Herald of Hope
Both of these cards are also incredibly affordable, with Cultivate going for just $0.32, and Flare of Cultivation also surprisingly cheap at $0.44