Contego

Contego   is a spell which the caster uses to make a large shield of  mana  to defend themselves from attacks. In  Couples Retreat, a triangle is drawn in the air to attack the opponent.

Etymology
 In Latin, Contego means "to protect".

Trivia
 After using the spell Ben 10,000 said that when you hang around an  Anodite  for 20 years, you "pick up a few tricks".

 Contego was also a spell that was used by DC Comics heroine Traci 13 in the  World of Flashpoint  mini series.