Standing in the arena, Alice twirled the greatsword in hand as though it was nothing.
Since she was hiding her identity, she wanted to make sure her fighting style was different to her usual habits to avoid suspicion. Therefore, she decided to use a greatsword bigger than herself.
Using Tiamat's Sigil, she was able to supplement her lack of physical prowess through using the ambient energy to empower her own physical body. In theory, it worked exactly like using Tiamat's power in an attack.
Only this time, her body was the weapon. Of course, the greatsword wasn't her only weapon. Along with the spear, she had also used a scythe.
During all of her fights, she had asked permission to plant several weapons around the arena in and in exchange, she is not allowed to use Resonance or more than three Sigils.
Naturally, her opponents agreed not realising that using her Resonance would expose who she is and that having more weapons is beneficial for her.