(gain the next level as a sorcery to add its ability.)
whenever a land enters the battlefield under your control, you gain 1 life.
2g: level 2
you may play an additional land on each of your turns.
4g: 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.