I don't know why this was removed in the first place, many older players still have this weapon from when it was available. The only replacement for this weapon now (unless on Rank Gear) is a 145 sword.. but as you can see.. the stats are nowhere close to what they used to be.
Clearly players with the older swords will have a damage advantage over ones who are using the 145 sword.
Could the Square formation option be readded to dragon swords? Why were they removed in the first place?