Yeah the ebony blade is very useless , the sword alone is not worth it if you have to kill a companion.
A useless weapon in videogames its the Mozambique in Apex Legends, a little bit of background first : your health is based on 100 points , the Mozambique its like a hand gun shotgun, it only fires three rounds with 3 bullets in each round , the 3 bullets are sent out in a triangle shape, supposedly if you accurately hit the target its going to make 45 points of damage. The problem is that if you only land one of the 3 bullets its only going to make about 10-15 damage and if you hit the arm or the legs is going to be about a 5-10 damage, recharging the thing is too slow and since its a shotgun obviously the farther your target the more the bullets spread out and the less damage they make.