XBattleAI (http://www.lysator.liu.se/~mbrx/XBattleAI/index.html) the fork of XBattle, should be added to portage, and XBattle should probably be removed. (The fact that is does not work with 16 bit or greater than colour, nor worked on since _1996_, and the website listed in the ebuild is down (http://bugs.gentoo.org/show_bug.cgi?id=72885), all contribute to this)
Created attachment 70990 [details] Initial XBattleAI Ebuild Initial XBattleAI ebuild. Currently, it is blocked by xbattle, since it uses some of the same filenames, albeit modified.
Thanks for the ebuild!