Well, this is the big one, the Guide! Ravaged Worlds should be easy to pick up in a few games, but it will take some time to learn every rule, trait and ability, but don't let that discourage you. We have a great community and there are always plenty of people to give you advice.
Here you can pick up the basics to get your started and once on your way, this will serve as knowledge base for everything about Ravaged Worlds.
This will lock the card.
A resource point must be paid.
A dice roll is required.
Is ideal to change your hand when you need discard some useless card to get a new one. Plus that, you can use it to deffend in bad situations.
In new decks will be good for any player; and in advanced decks, if you have space to fill with territories, could be a good option for you.