I'm fighting these things now, BLM48 with Elemental+8 and so far I can't stick any elemental magic, even ice. Kinda annoying me. Choke is sticking but not Burn. I have no idea what's going on but I shouldn't have any trouble sticking these spells IMO ><
Currently fighting these in Garliage Citadel. They give good MP, but if you don't have a valid healer, you're in for a fight. Takes a lot of MP unless you bust a ancient MB on it. But then, if you're alternating between bats and beetles, heh, trying fighting the beetle after the bat sticks you with "attack down". See how long it takes to bring this sum ***** down!