In 3e, there was indeed an interesting combination where a large creature with the obesity deformity feat (to increase his weight) used shadow jaunt to teleport 50ft into the air above his foes and dropped right down, dealing tons of falling damage to his enemies. My party never saw that one coming.
In 4e, fey step lets you teleport up to 5 squares. What are the rules for damage done by falling objects, if my eladrin then proceeds to drop right on top of the foe he teleported on top of?

In 4e, fey step lets you teleport up to 5 squares. What are the rules for damage done by falling objects, if my eladrin then proceeds to drop right on top of the foe he teleported on top of?