syricon

Even this is less effective. Dual-Daggers is almost never done. Its much more useful to have one free hand to grapple.

Can't stress this enough. There is no evidence that "Florentine" style fencing ever actually existing as a serious combat style. Dual-Wielding swords has been popularized in Fiction, and is used in some less serious martial arts. There are vno records of well trained combatants choosing to duel-wield with serious intent. It has almost no advantage. It gives up reach to two-handed weapons, and gives up defense to shields or proper off hand weapons. You actually have less effective reach with two one handed swords than a single one handed sword, much less a sword designed to be used two handed. That said - Combat with a shard blade is very different than traditional fencing. When you can be reasonably sure (excepting other shard bearers) that your swings are never going to be interrupted - many "not-normal" things become possible. If there was a time when dual wielding might make sense, a single shard bearer in the midst of a large number of enemies - where collateral damage is unlikely - might be it. This probably doesn't come up very often though. Certainly not enough to justify taking a shard blade away from someone else in your house. They style very often described strikes me as "hand and a half". The shard wielders often switch between one handed and two handed fighting as the cause dictates. As an amateur "sword fighter" / reenactor - this seems right to me. This seems like what I would do with a shard blade.