what is it and how it it different

Its a the shortcut of Classic Rusher

You will create your character in classic . You dont need the baalbugs in classic and their no runewords exist , thats why they are so expensive. After the rush in classic is done ( act 3 hell ) you will convert your character to the expansion LoD.

This post was edited by TomX213 on Aug 22 2011 02:16pm

oh ok ty

It's basically a Grush except it's on classic, not on expansion. Remember that the highest act on classic is act 3, thus why it's called a Crush and not a Grush since you don't have to "glitch" your character to the next difficulty.

Tom has further explained it above.

This post was edited by Fault on Aug 22 2011 02:30pm