You could make examinus spawn zombies and skeletons at an increased rate. As it's current effect might be a tad annoying, people settign up trap rooms with floors lined with examinius blocks constantly spawning them back and killing victims. Or the possibility of it messing up your bed spawn.
That's the problem with this project, with all the aspects not including addon ones, finding a cool and unique mechanic for each one of them is rather difficult to do.
I see it might be nessesary to give certain aspects "filler effects", lame token effects that are only there so you can say "every aspect has an effect".