Best I can put in words hmmm.... well think of it if a causal gamer playing your game what are you doing, what reroll why I only get 4 reroll, who am i attacking, health? how health work.
What I put is superficial but once a few more minute pass of me going through it I started to get the hang of it but if it come to a causal gamer that first minute may make or break the game.