Just a note as well, that any capable of casting invisibility is more than capable of casting 'magic aura'. So, every day, cast 'Magic Aura' on 3-4 pebbles (wands work great for this) to make them have an illusion aura. Then after you go invisible, if you see the wizard casting detects, drop a pebble in his cone and move out of his line of sight.
Nope, Paladin who uses a Move action is the equivalent of having spent 3 rounds studying.
The 3 round rule goes out the window with a Paladin. The Paladin can use Detect evil "at will", AND if he/she uses a move action they learn "the strength of its aura as if having studied it for 3 rounds".
