Hello,

Which LCG cards are legal at that moment? When will be next rotation? How it is organized in LCG format?

All cards are legal except for banned cards (Blood of the First Men, Compelled by the Rock and Jaqen H'ghar from the Clash of Arms cycle). There is also a restricted list of cards - you can only include one card (but up to 3 copies of that particular card) in your deck. Finally, as far as we know, FFG is not currently planning to rotate cards out of the game - there are even reprintgin some of the older sets (Kings of the Sea) in a better distribution format.

Hey Berto! Welcome back...or are you just contemplating jumping back in?

Currently, all "LCG" era cards are legal in the standard format. Basically, since FFG rotated out the "CCG" stuff (everything from 5 Kings and before), everything since then has remained legal. FFG's goal is to keep LCG cards legal, perhaps indefinitely. Instead of rotation, FFG has banned a couple problematic cards (including Jaquan) and has placed 10 or so on a "restricted list." Each deck is allowed to choose one card from the restricted list and play the legal number (1 if it's a plot, 3 if it's a non-plot card) but then can't play with any other restricted cards.

The FAQ has a the restricted list and some eratta. But nothing has been rotated, as mentioned above. Which has been a blessing as a new player.