—nope. No. None of this. Absolutely not.
Zarhan's blade ignites, a gold-edged black flame streaked with drops of strangely liquid red, and he—shifts, somehow, in Tintin's hand—and now it is Tintin who is the passive partner in this relationship.
The world seems to slow to a crawl around them. Zarhan moves through the air with grace and certainty, first cleaving an arc through the swarm, then curving out to the side to flick the tip of his blade through a straggler before coming back around to slice the swarm from another direction. A creature darts forward, teeth aimed for Tintin's arm, but Tintin's arm is long gone when it gets there and Zarhan is exiting the swarm in plenty of time to take its tiny head off its body on the backswing.
Being wielded by a sword like this is strange, inside and out. They are unified, a single being, with barely any distinction between blade and body; Zarhan isn't fighting the way a person holding a weapon would fight. Every movement of Tintin's body is fluid and efficient, and his body is moving—Zarhan has not discovered a capacity to levitate—but it's the sword that's leading the dance, and it shows. They never stop moving, never flinch or freeze or stall, until the last creature in the swarm falls to the ground in two smoking pieces and Tintin's body pivots so that Zarhan is pointing, still on fire, directly at the dog.
He wants to say something, something like how dare you be so careless with my Tintin, but he can't figure out how to make the voice parts work, it's not obvious the way it's obvious how to move the body around. After a heartbeat or two, he just lets go instead.