Alter Gravity

When casting this spell you may choose one effect

Enhance Gravity: Within a 15 foot wide 100 foot high cylinder the effects of gravity are strengthened. Within the cylinder all flying speeds are reduced to 0, the area becomes difficult terrain.

Reduce Gravity: Within a 15 foot wide 100 foot high cylinder the effects of gravity are weakened. Within the cylinder creatures benefit from the Jump spell and the Feather Fall spell.