(Gain the next level as a sorcery to add its ability.)
Landfall — Whenever a land enters under your control, you gain 1 life. : Level 2
You may play an additional land on each of your turns. : Level 3
When this Class becomes level 3, target land you control becomes a creature with haste and “This creature’s power and toughness are each equal to the number of lands you control.” It’s still a land.