The notes on special attacks seem to be slightly out of date. There must be one more condition, possibly based on damage taken or being hit with a critical attack, that rapidly fills the gauge. This is, I think, why enemies end up hitting you with them so frequently. It seems often that an enemy will from 60% to full, hit me with one, then get hit by mine because it was filled to full after his special attack.
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On an unrelated note, someone mentioned a while back a kind-of hax to get money involving destroying kitty banks you find through moongates. He mentioned specifically page 5-L, but when I visited that one, I encountered things. Terrible things. I think whoever owned it started armageddon before saving it. Is that the same one that was mentioned, or is it that (and this seems the more likely explanation) trying to find the same house based on position in the list isn't the best way to do it? I figure positions may change under certain conditions - such as if new houses are added to the list, or with changes in Elona version, or perhaps the list is populated randomly based on seed (though from what I've observed with multiple trips into moongates, the list seems consistent with a given character).