Headbutt

Acquisition
Signet of Capture:
 * Nightfall
 * Enadiz the Hardheaded (Arkjok Ward)

Trivia
This skill was briefly named Enadiz Headbutt. The name was a tribute to the famous French football player Zinedine Zidane (Enadiz, spelled backwards) who was sent off the field for headbutting the Italian player Marco Materazzi in the 2006 World Cup final match, the last match of Zidane's career.