This is probably very simple, but... well... I don't know.

Anyway, in MUSH, when making an alias, how can I make that alias use the information in a variable?

Like, if I'm making an alias to

cast blast
cast ignite
cast freeze

(just a simple example, I know it wouldn't work because of equilibrium), how can I make the alias use the data that is currently in the 'target' variable? Instead of me having to go and re-write the alias with a new name every time I fight someone new.

Use

cast blast @target
cast ignite @target
cast freeze @target

And make sure you have the EXPAND VARIABLES box checked.

Ahh, thanks a lot, I'll try it out!