wandering fumarole enters the battlefield tapped.
t: add u or r to your mana pool.
2ur: until end of turn, wandering fumarole becomes a 1/4 blue and red elemental creature with "0: switch this creatures's power and toughness until end of turn." it's still a land.
The nomadic kor carry only necessities on their long trek. The coming of the Eldrazi redefined "necessities."