And just after, three of the villain's followers burst out of the water to kill Quentyn in revenge. Instead, with his underestimated sword's magic flaring full blast and himself acting on instinct and too scared to notice what the weapon is doing, Quentyn kills the lot on them with one slash!
This troper thinks that the greatness of the moment is further continued right after the arc, when Quentyn the young kit sees nightmares about his first kills and cries on his mother's lap - a really touching strip.
Credit where it's due here: Quentyn may have signed the contract, but he never would have thought to if Squidge hadn't pointed out the flaw in everyone's reasoning about the covenant clause. With a single question, the little blue bogeyman saved Freeman Downs and, given the implications and after-effects of all this, possibly the entirety of Antillia.
You've just avoided being incinerated a dragon...so how do you retaliate? Well, unless its brain isn't in its head, the answer would apparently be to lobotomize it.
Bonus points to Wildcard for showing that, on top of its already-gargantuan list of abilities, it's a Morph Weapon.
One might give some credit to Linnaeus, the priest we meet in the epilogue of the Gragum arc. To enter unarmed the territory of a frankly antagonistic tribe for no more reason than to be a Good Shepherd ... that takes some courage.