Currently the air temple is considered to be the easiest temple by most players who have been there more than once, and this is even with the modifications introduced in 1.0.0. A number of features could be put in place to make the place more challenging. Here are my ideas.

- Grant guaranteed air temple minions (air grues, air elementals, vapor rats) the ability to see invisible.

- When the central chamber is opened, once Yulgash spots you, make him cast a special spell that would make parts of the walls of the central chamber disappear so that the occupants and summons can come out and try to surround the player. This can be done in a rather flavorful way like "Yulgash, the master summoner moves his hands in quick fluid motions! Incredibly strong gusts of wind blow out from the center of this chamber! With great effort you are able to stand your ground. Parts of the walls are blown away!"

- Re-introduce teleportation into the air temple level, so that the master summoner can again teleport around, which was a fun feature pre-1.0.0 and made killing the bugger a lot harder. Restrict the ability for the character to teleport itself and others. This can be done in a similar way to the restrictions on teleportation present in the casino. I suggest making teleporting others either always fail or teleport the character instead (if technically possible), and making teleporting self always teleport you to a random location, in a way similar to how teleporting is not controllable in the casino shop. (Teleportation was reintroduced in p7).