So we have Weak Armour, No guard and Illusion as Dreamworld on Aurumoth. I'd like to either put forward just keeping them the same, or depending on other aspects having the more "bug like" abilities such as Shield Dust or Shell/Battle Armour. Maybe for the second one you could argue for Vital Spirit/Insomnia, as Aurumoth "sleeps for centuries at a time" to recuperate the loss of sleep :P
There aren't a lot of abilities that sort of feed into the ones we have as such. Shell Armour may go into Weak Armour. But No Guard and Illusion generally don't have anything like them at all. Possibly Compound Eyes into No Guard?
I'm on a mission to train every Pokemon Family during a playthrough of 3rd to 5th Gen! Currently at: 517/602!
Current Team (White): Gothitelle/Accelgor/Maractus/Granbull/Garbodor/Basculin
Current Team (Black 2): Solrock/Emboar/Sunflora/Crobat/Dunsparce/Azumarill