Horizon's VeilSpell 5
Source Pathfinder Impossible Magic
Traditions Arcane, Occult
Cast

Area 20-foot burst
Range 60 feet
Duration 1 minute
You warp the perception of distance in an area, causing creatures to misjudge their surroundings as the horizon seems to expand and contract wildly. The affected area has the following effects. You can Dismiss this spell.
Ranged attacks that pass through the area take a –2 circumstance penalty to attack rolls.
The area is difficult terrain.
Creatures who end their turn in the area must succeed at a Will save or become Slowed 1 for 1 round.
Traits
Anything that doesn't list another rarity trait (uncommon, rare, or unique) automatically has the common trait. This rarity indicates that an ability, item, or spell is available to all players who meet the prerequisites for it. A creature of this rarity is generally known and can be summoned with the appropriate summon spell.
ConcentrateAn action with this trait requires a degree of mental concentration and discipline.
IllusionEffects and magic items with this trait involve false sensory stimuli.
ManipulateYou must physically manipulate an item or make gestures to use an action with this trait. Creatures without a suitable appendage can't perform actions with this trait. Manipulate actions often trigger reactions.
VisualA visual effect can affect only creatures that can see it. This applies only to visible parts of the effect, as determined by the GM.