Gideon

Gideon is Diane's sacred treasure, and after her having lost it, is currently one of the two rewards for winning the Byzel Fight Festival.

Appearance
Gideon is a war hammer designed for a giant. It also includes what appears to be a pommel on its other end.

Background
After the Seven Deadly Sins' disintegration, Diane lost Gideon for a yet unknown reason; it was later found in a valley, and then subsequently became one of the rewards for winning the Byzel Fight Festival.

Abilities
Gideon's has high destructive force, able to crush a giant mountain with ease and is compatible with Diane's ability, Creation.

Trivia

 * Gideon or Gedeon, which means "Destroyer," "Mighty warrior," or "Feller (of trees)" was, according to the Tanakh, a judge of the Hebrews.