Until end of turn, target land you control becomes a 4/4 Dinosaur creature with reach and haste. It's still a land. It must be blocked this turn if able.

This land enters tapped. {T}: Add {G} or {U}. {2}{G}{U}: This land becomes a 3/3 green and blue Elemental creature with hexproof until end of turn. It's still a land.

(Gain the next level as a sorcery to add its ability.) Landfall — Whenever a land you control enters, you gain 1 life. {2}{G}: Level 2 You may play an additional land on each of your turns. {4}{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.