Invisible creatures detectable with a Spot DC20?

[The_lone_gunman]

Dont forget also that the listen check to pinpoint someone is reduced the further you are away from them. From memory I believe it is -1 per 10 feet.

TLG

 

[Ukyo the undead]

The problem with giving a straight +20 to hide checks is that your average heavy armor type is going to have a -8 armor check penalty (from full-plate and large shield). Any rogue worth his salt is gonna be able to pinpoint this guy much more easily than he should.

Ahn...

Remember that the fighter with heavy armor and a shield( and i not even talking about his gear), will be doing a lot of noise when walking, and even when trying to stand still.

It shoul be very easy to pinpoint him because of this.

So, a rogue worthing his salt is supposed to find someone trying to use invisibility this way, even with the normal invisibility rule.