 Nerissa conjures mystical warriors called Annihilators, who ravage the Meridian countryside, only to disappear when Elyon arrives to fight them - and then reappear when she returns to Heatherfield, frustrating her and W.I.T.C.H. Meanwhile, Matt, tired of being Will s "damsel-boy in distress," makes a deal with Caleb to teach him to fight in exchange for Matt teaching Caleb how to fit in at Sheffield - and Will finds that her increasing affinity for electrical shocks ultimately manifests in her ability to produce and control electricity as a weapon - which is the key to destroying the Annhilators.