Kynaios and Tiro of Meletis

Oracle Text

At the beginning of your end step, draw a card. Each player may put a land card from their hand onto the battlefield, then each opponent who didn't draws a card.

Card Rulings

11/8/2016 Starting with you and proceeding in turn order, each player chooses a land card from their hand or chooses not to choose one, but doesn’t reveal any chosen lands yet. Once all players have made this choice, all chosen lands are revealed and enter the battlefield simultaneously.
11/8/2016 If the card you draw is a land card, you may choose it to put onto the battlefield.