First, Rohan and Gondor are just names (used to be US and
EU Daily). They are My Cards Constructed Tournaments, so you must have deck of your own cards. If you joined now, you can buy a starter or two in the Merchant or buy some singles and build something cheap to start. Starting times are always 19.30 and 0.30 server time (you can see server time in top right corner of the game hall). One day both Dailys are Fellowship Block, the next Day both are Movie Block (there are also Expanded Dailys along with the Movie ones, but noone ever plays them, so just Fellowship and Movie really). First 8 get boosters, and sometimes we're just 8, so everyone gets. You must make a deck in the Deckbuilder selecting My Cards, then go to Tournament Queues, and join the Daily queue after having selected said deck in the scrolldown menu in game hall (right next to Merchant and Deckbuilder tabs). The queue for the Daily appears 1 hour before the start. When 1st round starts, you'll find your match in Playing Tables. Next round starts when all players finish their matches.