Icicle attack!
As he ran towards Celene, she retreated wanting to give him space and reduce his chance of catching up to her.
Using that time, she made the tiny icicles to keep increasing and increasing, they looked like crystals, and were all pointed at Leon.
Leon at this point, knew that things weren't going his way, so he immediately prepared to use mana slash, his Greatsword was already thumping with the energy of mana, as he had infused mana into it before, it's the strength of the mana within it that destroyed Celene's weapon.
But unlike before, when he will leave it in the weapon, he would use that mana against Celene.
So he wasted no time, running before using all his strength, to use his Greatsword to do a powerful and wide side slash.
As he slashed, he unleashed the mana imbued in the Greatsword making them go at Celene with an insane speed.