ShiKage's Infighter Build

Hmm, so Energy Buster really is much more of a loss then energy drain? Will you still get a signifigant amount of HP with level 11 drain?

Taken from my guide:
The choice between the two seems obvious to me, but those of us that have been researching the Pirate class throughly have come at an inpass about this. There are those saying that maxed Energy Drain would be more beneficial than maxed Energy Buster, since absorbing more HP per hit could save your life. Another argument for maxed Energy Drain is that there are plenty of other hard hitting attacks a Buc could use instead of Energy Buster. But, Energy Drain, as far as we know, only hits one monster at a time, while Energy Buster can hit four. There are many pros to having Maxed Energy Buster as well. You are dishing out 420% damage over four enemies (thats 1680%). This also out damages Screw Punch (three enemies at 420% a piece = 1260%) Added to that, the only 3rd job skill that will out damage maxed Energy Buster is Shockwave, which hits six enemies at 700% a piece (a whopping 4200%) But remember that Shockwave is only accessible in Transform mode and that skill has a cooldown time (480 seconds), limiting use of Shockwave

Also, consider the following:
ED at Lvl 11: Damage 315% / 16% of damage converted to HP / 200% Range
ED at Lvl 20: Damage 360% / 20% of damage converted to HP / 200% Range

EB at Lvl 21: Damage 366% / 4 Enemies / 100% Range
EB at Lvl 30: Damage 420% / 4 Enemies / 100% Range

If you leave Energy Buster at Lvl 21, you are losing out on a total of 216% damage (54% per monster) compared to maxing it. Keeping Energy Drain at Lvl 11 only loses you 45% damage.