Storming strikes

This spell can be cast at different levels starting at level 2. the duration of the spell in rounds is 1 less than the level it was cast at.

effect
The weapon gains a storm value, this gives the weapon and enchantment bonus equal to itself. Each time the weapon lands a strike on the intended target the storm value increases by 1, each time they miss the value is decreased by 1.

the storm value cannot be less than 0. Objects like walls and tables do not count to increase the storm value.