How do you change the variable of a page that is accessed
by an item?
Pages and variables are separate. You mean when you use an item you want it to change a variable? You can just use the pagescript of the page the item sends you to to change the variable.
???! Say i need to stab a bunny to get gold, i click on my crowbar, click use and then it dies, how do i add to the variable?
You have scripting enabled right?
If so go to the page where your item is, click "Edit Item script", then make the changes to the variable you want to affect.