These lvl 3 ranger spells are unfortunately kind of lackluster. Part of the reason I think is because they are all spells that don't make an attack roll (they apply half damage on a save). While this means they will always deliver damage, it also means they are unable to proc effects/conditions from class features, items, or coatings. Personally I would prefer the enemy have a chance to dodge for the opportunity to potentially mass apply conditions/coatings. The aoe arrow consumables (fire arrow, acid arrow, etc) make attack rolls and can be used for the purpose of mass condition application generally making the arrow consumables a better option then these ranger spells. It would be nice if rangers had this ability without a consumable.