Sen triplets

[Deathstorm]

If I play a land with the {sen triplets} does it enter the battlefield under my control ? What about creatures I cast do they enter under my control and does my opponent get control of them after their turn is over?

[Avnger345]

If you haven't played a land on your turn you can play a land out of your opponents hand and it stays on your battlefield. 

[Deathstorm]

Thanks