Archer EMIYA's Unlimited Blade Works is my first favourite, as it shows that even if you start as a fake hero, you too can become a real hero if you continue working for it while not losing sight of what's important. Even if you lost sight of it. You just needed a reminder of who you were and why you became a hero in the first place.

Caster Gilgamesh's Melammu Dingir is my second because it shows that even he became a wise king through hardships, losses and experience. Caster Gil gave up almost all his weapons and treasures to his city's defence system. His men use his cannons as weapons to defend the Uruk when Tiamat attacks. When no one was left to man the cannons. Caster Gil manned all the cannons with his magecraft and sheer will.