If mirage arcana cannot disguise creatures and make them appear different, then you've still got the floating hair issue. Also, I think aboleth have a mucus cloud thing that surrounds them when they are underwater....Would it not be odd too see an aboleth in open air surrounded by a cloud of wet mucus.
Air elementals are made of one of the 4 elements that compose existance....If mirage arcana can create an illusion of air, then it should also be able to create solid earth.
So...now you see earth in your eyes(or rather complete darkness sincebeing burried means there is no light), you feel yourself surrounded on all sides, you cannot breath, you cannot move, you cannot hear since your ears -feel- full of earth, you cannot feel your allies pushing you around since you believe your surrounded and even if they knock you on the ground you still -feel- like your exactly where you started in exactly the same position....If you get stabbed you don't -feel- it because earth doesen't feel like a knife in the back....none of this sounds a little overboard for a 5th level spell? You can even say that the creatures surrounding you are NOT being disguised, rather they are all just 'hiding' behind the terrain. And since you can't get another save since your perception of being burried prevents you from hearing someone tell you there is an illusion, you would eventually suffocate yourself since you are magically prevented from breathing since you believe you cannot breath solid earth? The spell itself isnt harming you, it's just preventing you from breathing....which in turn causes suffocation.
Compare this power to the 9th level Weird spell.
Are you saying that if someone uses mirage arcana to create a false bridge and a person walks over the bridge and fails their save then their senses will tell them that they are still standing on the bridge, and walking over it, up to and including after they go splat and take 20d6 at the bottom, where they still think they are walking over the bridge...And they aren't allowed a second saving throw until someone TELLS them there is an illusion? Exactly where do you draw the line on the extent that your senses are fooled?
I am a big fan of illusions personally, but this type of interpretation makes illusions way too obscenely powerful.
*edit* lol. maybe this spell is why some people remember sniper fire where there is none and fail to notice entire groups of 7th graders at their greeting ceremonies
