brehobit
Explorer
In my game I've added a mage version of glyph of warding. Functions the same but only set off by scrying/detection and is 4th level. Really nasty as you can embed a 3rd level spell (say fireball) into the glyph. Same thing, but for scrying only would seem reasonable. Also the there are lots of spells that block scrying. None-the-less, this is what a diviner should be doing. "Scouting" ahead when time allows. Worst case is, people are expecting you.
Also, don't forget about the illusion spells that only work on scryers (Screen or some such?)
Also, don't forget about the illusion spells that only work on scryers (Screen or some such?)