I was looking through the sword archon description and in its special qualities it lists a number of things including aura of menace, magic circle of protection against evil and teleport. I look at aura of menace and magic circle of protection from evil and think "ok makes sense these are aura effects that are constant". But I get to teleport and it gives me pause.
Obviously the archon isn't teleportig at all times, does this mean it can use this quality at will? If so why isn't it included with the at will spell like abilities such as aid or continual flame?
If it can use it at wil does that mean its abilities like tongues or aura of menace are also abilities activated at will? Or are they constant?