Crush Armor

You take an open pine cone and crush it in the direction of any one opponent in sight, you take 1d4 piercing damage. The target must make a constitution saving throw. On a failed save, the target takes 4d8 force damage and is reduced to half speed and gives disadvantage on attack rolls against the caster. On a successful save, the target takes half as much damage.

The constrained target makes a constitution saving throw at the end of each of its turns. On a successful save, the spell ends.

 At 6th level failed saves take 6d8 force damage.

Only works against targets wearing armor.