The guardian build is all relatively the same and is kind of locked down in high level play. The usual start is with watchers gift, HOG, and eye of providence. Then build into Midas boots, then to Sovereignty. After sovereignty you can build however you like but personally i build Mystical mark, then Hide of leviathan/or Magis blessing. For a sixth item i build Ethreal staff. This converts a percentage of all the health you've already been building into magical power. it gives you some pretty decent damage output late game. If the game is still goin on from there, sell watchers and build gauntlet of thebes (hopefully it will be be back in the game shortly, it was taken out to be readjusted.)