Arrow Manipulation

You cause object you can see within range to grow larger for the duration. Choose object that is about to be fired. Once cast, the spell has multiple levels. On a success, the spell has no effect.

ENLARGE: When cast the arrow is enlarged by up to double the size of a spear. There are 4 variations of this spell: x2, x4, x6, x10. Once cast, the caster will roll a d8. If rolled 2 or less, the arrow will only increase by one size, small to medium, attack gets an extra 1d4 damage. If rolled a 3 or 4, the size is increased by 2, small to large, attack gets extra 1d6 damage. If rolled a 5 or 6, the size increases by 3 categories, small to huge, attack gets extra 1d8 damage. If rolled a 7 or 8 the size increases by 3 categories still but deals increased damage, attack gets extra 1d12 damage.