Burning TrailSpell 3
Source Pathfinder Impossible Magic
Traditions Arcane, Primal
Cast

Range 30 feet
Target your companion or eidolon
Duration 1 minute
The target's feet glow with a magical flame that lingers and grows on the ground where they walk, creating a line of blazing fire as they move. The first time the target Strides during the spell's duration, they leave behind a trail made of magical fire that fills up each space they occupied during that Stride. This fire is 5 feet high. Creatures on either side of the trail are Concealed from creatures on the opposite side. Any creature that enters or starts its turn in the trail's area takes 2d10 fire damage.
Heightened (+2) The fire damage increases by 1d10.
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.
FireEffects with the fire trait deal fire damage, or either conjure or manipulate fire. Those that manipulate fire have no effect in an area without fire. Creatures with this trait consist primarily of fire or have a connection to magical fire.
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.