Warped Terrain
You create illusory hazards that cover all surfaces in the area (typically the ground). Any creature moving through the illusion treats the squares as difficult terrain. A creature can attempt to disbelieve the effect as normal after using a Seek action or otherwise spending actions interacting with the illusion. If it successfully disbelieves, it ignores the effect for the remaining duration. For each additional action you use casting the spell, the burst's radius increases by 5 feet, to a maximum of 10 extra feet for 3 actions.
Heightened (4th) You can make the illusion appear in the air rather than on a surface, causing it to function as difficult terrain for flying creatures.
Traits
An action with this trait requires a degree of mental concentration and discipline.
Focus spells are a special type of spell attained directly from a branch of study, from a deity, or from another specific source. You can learn focus spells only through special class features or feats, rather than choosing them from a spell list. Furthermore, you cast focus spells using a special pool of Focus Points—you can't prepare a focus spell in a spell slot or use your spell slots to cast focus spells; similarly, you can't spend your Focus Points to cast spells that aren't focus spells.
Effects and magic items with this trait involve false sensory stimuli.
You 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.
A visual effect can affect only creatures that can see it. This applies only to visible parts of the effect, as determined by the GM.
This indicates abilities from the wizard class.