by ~'(^ + ^)'~ on Thu Sep 24, 2015 12:20 pm
Ok, I don't know the exact order of category of items scouted, like priority to glyphs and altars first, then shops, bosses, monsters, boosters in the second category (that's just my guess).
From 2 runs with Half-Dragon in Labyrinth and Lemissi right at the start, I managed to not reveal Rex even after 5? casts? Luck? perhaps, but I still think that the chances of revealing Rex in 1 to 3 casts should be very low. By that time, you should have seen most of the glyphs and at least 1 if not 2 altars.
But, I definitely agree that it is risky. Half-Dragon still has Knockback and with Wonafyt/Weytwhut can still knock some holes and open some paths but other classes would be much more dangerous to the point of straight defeat if you find Rex too early.