Lingering Will

Terra's calm and cool exterior hides a heart that would fight for his friends. However, Terra struggles to keep himself on the right path, and is constantly tempted by the power of darkness, similarly to Riku. Oblivious to the fact that Master Xehanort is attempting to seduce him into darkness, he begins to doubt those closest to him, and only recognizes his mistakes after the fact. While not gullible, Terra can be overly trusting, which most villains use to their advantage, leading to several of his misadventures.

His experiences with darkness bring a negative vibe to him, but Terra holds his bond with Ventus and Aqua in high esteem, willing to fight for them despite his ties to the darkness, and wishing to help them long after his possession. This is seen with both the new Xehanort and the Lingering Will, both instances of Terra's faded consciousness acting on Ventus's and Aqua's behalf. He also holds Master Eraqus in high regard, viewing him as a surrogate father, which he proclaims to Xehanort. After destroying Master Eraqus in order to save Ventus, Terra mourns his loss greatly and sheds tears for his Master.

His willpower and spirit are near indomitable; enough to animate his armour through sheer will and rage alone, an act enough to stun even Xehanort himself. Even after his seeming victory, Terra’s Will proved strong enough that Xehanort was forced to improvise, and cast his form into a Heartless and Nobody much earlier than planned. Even after a long time, his utter rage at the ancient Keyblade master’s treachery was enough to animate his armour again to oppose him during his seeming finest hour, again, to Xehanort’s impotent anger.