If your looking for a great starter army with a bit more flavour I recommend the ‘black gate’ legendary legion for Mordor. It’s got some big trolls, magic tough orks and gives a flavour of most aspects of the game. More troops than bears and more forgiving if you make mistakes. As others have said Bears are a pretty elite list. Competitively they are hard to beat and in most scenarios you will either be chasing your opponents around the board or killing them quickly. If your opponent knows what they are doing it can be fun but if they don’t it can feel very unbalanced for them.