druid gameplay help

[coinheaven]

so i just found out this game was made for the FDS!  i am excited because it is one of my favorite games for the C64, now i can play it on my power pak.  anyway, this version has weird spells (i guess thats what they are) like endurance and harden that you can get from the treasure chests.  anybody know what these do and how to use them?  i think harden messes up your movement though, after i get that i stop moving every 5 seconds.  i cant find anything on the game play of this game, so any help would be great.  thanks