Seeing this field made me want to give this cheetah plainswalk. But, as it turns out, Zodiac Rooster, one of the few plainswalkers in all of Magic: The Gathering, makes an appearance in the same set. So, that option was out.
Haste is in green, but it only rarely appears on green cards. However, this would be a good time for green to get a haste creature, right? Cheetahs are well-known for their speed! Being fast is typically represented in three ways: flash, first strike, and haste. First strike and flash are out because this card appears in the set Portal Three Kingdoms. So, haste it was.