You may add battles to posts to analyze them (example). To do so you need to choose a finished battle. Each battle has an URL like this one:

http://s1.orionsbelt.eu/Battle/Battle.aspx?Id=3877087

If you change the page name to Embedded, you’ll get a simplified view of the page:

http://s1.orionsbelt.eu/Battle/Embedded.aspx?Id=3877087

Now you just need to incorporate that simplified view on a post. To do that, go to the HTML view of the write post window and write something like:

<iframe src="http://s1.orionsbelt.eu/Battle/Embedded.aspx?Id=3877087" 
  scrolling='no' frameborder='0' marginheight='0' marginwidth='0' width='480' height='505'
</iframe>

This will show the battle on the post. Another way is just to copy the source of the embedded page and paste it to a new HTML file. The HTML source has all the moves information inside. Then you could upload that file to the blog using the Add Media option. This has several advantages: the battle is now static, doesn’t depend on the server being up and won’t consume server’s resources. On my example I did just that:

<iframe src="http://gazette.orionsbelt.eu/wp-content/uploads/2009/04/mawhrinvsrebornedaspx.htm" 
   scrolling='no' frameborder='0' marginheight='0' marginwidth='0' width='480' height='505'
  </iframe>

But if you’re not comfortable with this option go ahead with the direct reference.

EDIT: It seams that you many not insert iframe’s due to security issues. A workaround is using the following tag:

[ iframe url width height ]

For example, the next code:

[ iframe http://gazette.orionsbelt.eu/wp-content/uploads/2009/04/mawhrinvsrebornedaspx.htm 500 535 ]

Will result in the following:

Note: you’ll have to remove the extra spaces near [ and ]