Meanwhile, back in the arena, Diluc merely smiles as three beasts and two young men gradually reach the range of his magic, the look on his face that of someone who feels a bit of pity towards an opponent about to be blown quite a distance away.
"Explode"
Seeing that the fastest among them, Reginald's contracted beast, the Twin-headed Mountain Lion, about to reach his place, Diluc mutters as the magic circle in front of his extended fist starts collapsing on itself, seemingly being absorbed by the magic as well as it got compressed by the ball of fire elemental mana until it can no longer be seen.