Crush of Earth

Transmutation
Circle: Shaman 5, Tactician 5
Casting Time: 1 standard action
Range: [Long]
Effect: Dramatically increases gravity in a 45 ft radias
Duration: [Encounter]
Saving Throw: Fortitude; see text

This spell dramatically increases the local gravity. You create a 45 ft radius spread originating from target square within the spell's range that lasts until the end of the [Encounter].

For each creature, the first time each [Round] that creature is in one or more squares of the spread, it loses the [Flying] condition and the Fly movement mode, cannot gain the [Flying] condition as long as it remains within the area of the spell's effect, becomes [Checked] in all directions for 1 [Round], and becomes [Prone].

A successful Fortitude save causes the creature to be [Slowed] and suffer a penalty equal to half its movement speed to its movement speed for 1 [Round] instead.

Reversal - Reverse Gravity

Effect: Reversed gravity in a 45 ft radius
Saving Throw: Reflex negates

This spell reverses gravity, to hilarious consequences. You create a 45 ft radius spread originating from target square within the spell’s range that lasts until the end of the [Encounter]. For each creature that is not [Burrowing], the first time each [Round] that creature is in one or more squares of the spread, it is rendered [Flying] and [Checked] in all directions for as long as it is in one or more squares of the spread. A successful Reflex save negates this effect. Additionally, a creature that possesses the Fly movement mode may spend an immediate action to negate this effect. Once per [Round], at the beginning of its turn, a creature that gained the [Flying] and [Checked] conditions from this spell may make a Reflex save. A successful Reflex save removes the [Checked] condition, and removes the [Flying] condition if the creature has been [Flying] for one or more [Rounds]. When this spell ends, objects in the spread fall, and creatures in the spread without the Fly movement mode that are [Flying] suffer a Hazardous Fall.