SPRITE CHANGING ITEMS - ACE

If you are using the free trial of ace then I believe common events are disabled if I remember correctly.

A really simple way of doing it though would just be to put an event on the maps that contains a "conditional branch".

Go to event -> right click in the content field -> insert -> conditional branch (under flow control) -> 2nd tab -> fill in dot for actor -> pick the character that will experience a sprite change from having the thing equipped -> click the weapon or armor that will change the sprite from the drop-down menu -> click ok.

Now, you have a blank conditional branch that means IF you have this thing equipped THEN this blank will happen. What you want to do next is fill in the blank by clicking on the @> under conditional branch -> insert -> page 3 -> under system settings click "change actor graphic" button and pick the graphic you want him to wear.

the end result should look like this:

@>Conditional Branch: your guy's name is your piece of equipment name Equipped
@>Change Actor Graphic your guy's name, 'thegraphichewillwear','theoldgraphic'
@>
: Else
@>
: Branch END
@>