hi jenjen yes ... you need some luck with 805 it is tough, but beatable
general approach take your time each move ... find a word ... then look for a longer word try to make 6 letter words each move early in the game once you get stuck make a 4 letter word
crowns ... up to 3 crowns can be made depending on the artifact avoid using crowns when making a word try to blast crowns ... they add to the word length and are returned to the board
artifacts ... your choice take extra move(s) add crown(s)