Another trap I just made now. Wizards will definitely see the benefit of this, if they have the right feats. A personal favorite spell combination made especially for those pesky and greedy intruders.
You are given the task of breaking into an old wizard's den and stealing two special items that cannot be reproduced by just anyone - the fact of the matter is they're rods of metamagic*, but not any ordinary rods.
You creep up to his tower and, through a window, see the powerful wizard practicing with the rods in a way only he can. What you don't see: as the wizard prepares to sleep, he combines the powers of the rods into a triad of devastating - but not at all lethal - spells. They are:
- a "flesh to stone" spell, bound to the earth;
- a "shrink item" spell, delayed to trigger only a moment later and bound to the same exact spot; and
- a "stone to flesh" spell, in the same spot, yet set to trigger after the other two have gone.
The wizard sets them then on the shelf in his study, unguarded. As the tricky thief breaks in and heads for the shelf, the traps trigger! First, the thief is frozen in stone; after that, he shrinks to fit in the palm of your hand; finally, the spell lets him become human again, a mere four inches tall at best. When the wizard wakes the next morning, he'll find the thief stumbling along the now-endless floor... and if the wizard plays his cards right, perhaps he'll have a new pocket-sized assistant.
...but the thief got what he deserved in the end for trying to steal the wizard's greatest treasures - his metamagic rods of Delaying and Earthbinding.