A few days ago, after Noah completed Aetherforge's weapon level up test to take the level cap of the SSS-Rank weapon from level 20 to level 30.
[Congratulations! You have completed weapon level up test!]
[You survived, and won.]
[Aetherforge has evolved.]
[New Forms Unlocked=]
>Click to access new forms<
>New Form: Great Sword<
After completing the SSS-Rank weapon's level up test, the new weapon form that Noah unlocked was the Berserker's Greatsword.
In Warstar, a Berserker's Greatsword is vastly different from the twin blades normally used by Blademasters.
The first difference was in the attack speed, twin blades having a much faster attack speed than Greatswords. But Greatswords also had their own advantages, the advantage of a longer reach and a higher damage potential.
Noah was a master at playing every class available in Warstar, including using their weapons, but never has he tried using multiple of them in conjunction.