There are simply not enough giants spawning. I'm trying to get sand of ro for my deity, and I've not seen a sand giant in Oasis for days. Should I really have to sit in Oasis for DAYS hitting track to find a freakin' giant? I've killed Hatar three times today but have yet to see a giant. I've never even felt in any danger while hunting in the zone on my lower level characters because there were rarely any up.
I'm also doing this:
oasis_aoe.jpg
to try and spawn them, unsuccessfully.