Mark of a Hero

Mark of Hero (マークオブヒーロー) is a Keyblade in Kingdom Hearts Birth by Sleep that is obtained in Olympus Coliseum by Ven, Terra & Aqua.

Design
The tooth of this keyblade is the arm of a trophy and the hilt is a pillar which is a sign of Olympus Coliseum.

Etymology
Mark of Hero, is referring to the heroes or protagonists of Birth by Sleep, and the mark possibly refers to their lucky charms.