(Gain the next level as a sorcery to add its ability.)

Landfall — Whenever a land enters the battlefield under your control, you gain 1 life.

{2}{G}: Level 2

You may play an additional land on each of your turns.

{2}{G}: 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.