This spell, a more powerful version of the air walk spell, temporarily alters the body weight of the priest or a touched being (of large size or less), so that the creature can walk upon liquid or air with normal balance and at normal movement rate. Unlike the 3rd level spell, water walk, the being's feet do contact any liquid walked upon.
If cast upon a falling creature, this spell stops the descent within a further drop of one body length of the creature. If any surface is struck during this time, base falling damage is halved. Using the spell duration to walk straight downwards and lessen the height of a remaining unavoidable fall can lessen damage from long falls. When the spell ends, normal descent (with possible falling damage) occurs.
This spell is often used to walk across chasms, or from one rooftop to another, but can be used to cast a single spell while stationary in midair. This use of the air tread spell exhausts it immediately upon the completion of casting the other spell, so the caster immediately begins to fall.
The material components are a feather, a pinch of dust, and a sandal or shoe of any size.
Notes: Granted by the drow god Vhaeroon.