When attacking, while Choco, Seeker of Paradise is on the battlefield, you are permitted to look at the number of cards on the top of your deck, that match the number of birds that are attacking. You are allowed to put one into your hand, then any lands onto the battlefield tapped, finally the rest of the cards go into your graveyard.

This is currently bugged. If no lands are in the cards that come off the top of your deck, you are able to choose one for your hand, and then the submit button is covered by another button and you are not able to click to move past that selection. I tried to get a picture of it but my opponent quit because I got locked up and couldn't move past that screen.