Suggested Small change to make Bucc's energy orb useful for something

So the skill Energy orb is extremely niche as an attacking skill. Usually Buccs only raise it after everything else, maxing it at level 190+. And yet the only use for this skill is to use it after barrage to deal 4% more damage than using energy drain twice, and that's only when bubble is up and transformation is down.

I raised this skill for card farming (with the intention of SP resetting it after) because dragon strike is awful to use on maps with irregular shapes, or against flying enemies, or honestly just for card farming in general since its slow and cant be used while jumping. But the 50% damage fall off on energy orb is so high it struggles to kill low level enemies.

The 6 hits have the damage numbers of:
1: 900%
2: 450%
3: 225%
4: 112.5%
5: 56.25%
6: 28.125%

If a Bucc has 4000 minimum damage, which is a pretty strong bucc likely to be at least level 180, the 6th hit will deal a minimum of 1125 damage.

A jr. wraith has 1200 hp.

My suggested change: Make the damage fall off end at the 4th hit. i.e. have the damage numbers look like:
1: 900%
2: 450%
3: 225%
4: 112.5%
5: 112.5%
6: 112.5%

This would open the skill up to being used for card farming enemies (or for any other reason) in the 2nd job level range with minimal effect on high leveled enemies and no effect on attacking 4 or less enemies.

A niche change for a niche skill, but a nice change for bucc's terrible ability to kill low level mobs.