King Arthur is training with his fencing master who insults him copiously. The only way for him to fight his King, and urges him to call him names too. At first reluctant, the King seems to enjoy it very much, to the despair of his fencing master.
During a battle Merlin needs a shark tooth for his magic spell. Perceval and Karadoc are sent back to Camelot to get one. Meanwhile Merlin has found a possible replacement, but the spell only made the enemy laughing out loud.