Acid ArrowSpell 2
Source Pathfinder Core Rulebook
Traditions Arcane, Primal
Cast

Range 120 feet
Target 1 creature
You conjure an arrow of acid that keeps corroding the target after it hits. Make a spell attack against the target. On a hit, you deal 3d8 acid damage plus (floor(@item.rank/2))d6 persistent,acid damage. On a critical hit, double the initial damage, but not the persistent damage.
Heightened (+2) The initial damage increases by 2d8, and the persistent acid damage increases by 1d6.
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.
AcidEffects with this trait deal acid damage. Creatures with this trait have a magical connection to acid.
AttackAn ability with this trait involves an attack. For each attack you make beyond the first on your turn, you take a multiple attack penalty.
ConcentrateAn action with this trait requires a degree of mental concentration and discipline.
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.