I can help:
There are 3 options in the left top corner, first is home tab, it's basically the start, second is the search tab, it allows you search users decks or the users themselves, sometimes events are displayed here, third is the create tab, it allows you create certain decks and implement them in castle! On the decks themselves, there are 3 points on the bottom right corner of each deck, in there, there is the remix, the restart,mute or unmute,block the person,report the deck, and next to it is the link option where you can take the link of a specific deck and you can access it anytime,now on the bottom left corner of a deck is the react, similar to likes on YouTube, the comment , similar to YouTube,and boost,the boost is like attracting users when they first open the app and open the app millions of times, and oh yeah, there is the snapshot option where you can take photos of certain decks! Now on the top right corner on your screen.