What other weapons besides the Darksaber does Sabine use? I haven't watched Rebels yet, but I read that she is also Mandalorian. I'm assuming she has similar weapons and equipment to Din (who doesn't have to missile launcher on his jetpack), except for the Whistling Birds missile salvo which seems to be exclusive to Din.
Also, it seems pretty unlikely that Din would use a saber. The Beskar spear should be enough, just as was against Moff Gideon when he wielded the Darksaber. But that's just me. Din likely never used a saber, so I don't see him being skilled with it.