Bonus: Has a 50% chance of stunning an opponent for one turn, a 25% chance of stunning them for two turns, and a 2% chance of stunning them for six turns. Ow, it's spiky...
+100 Earth Piercing Bonus: Has a 50% chance of stunning the enemy for 1 turn, a 20% chance to stun the enemy for 2 turns and attack them for 100% of your strength each turn, and a 5% chance to stun the enemy for 3 turns and attack them for 250% of your strength each turn.