It is a really great debuff for yourself and your team even in pve.
I’ll be discussing this in PVE perspective then.
When maxed the debuff duration that doubles the physical damage taken by the hitted ennemies increase.
It doesn’t Double the physical damage taken, thing that caused the confusion to believe gae bulg is actually a legit skill, guess what? ITS NOT.
If you took the pain to get a dragoon by yourself & test the skill, you would notice all what gae bulg does is split your damage into 2 ticks, the total damage is still the same.
ie: If you deal 300 damage using your basic attack (Z), debuffing a mob with gae bulg and using your basic attack (Z) again on it will result in 150+150 damage.
That is clearly not double damage.
And when maxed you also put a 15sec zone that will buff every member
of the party in the square based on the number of party members inside
the square ^^
2% more attack and defense.
How useful is that?
Let’s take my stats for example, with 1400~1600 physical attack and 430 physical defense, that’s +28~32 physical attack and +8,6 physical defense.
All of that, INSIDE A SQUARE, so if the boss decides to move and you actually threw the spear on the boss, RIP melee chars, more importantly, ranged chars won’t be able to profit from that miraculous buff unless you ask them to hug the boss & get into the aoe, if you choose to throw your spear on the ranged DPS side on the other hand and ignore the boss (therefore not debuffing it with the amazing gae bulg debuff), you’ll be giving them 2% stats for 15 second, at the price of going back to catch your spear and wasting precious animation time that you could have used to deal more damage using your basic attack alone.
Do note that, to have any of the buff attributes, your gae bulg must be Lv5, in other words you’ll be keeping one of the other legit skills at Lv1 or 0, while they actually do damage unlike gae bulg. (Yes, in case you didn’t test that as well, gae bulg is one hit, while serpentine can deal around 40k+ damage alone due to the multi hit, gae bulg still can’t get past 5k, with the amazing bonus of losing your spear & everlasting cooldown)
Please test something before saying its good or recommending it to other people, as it becomes misleading and can cause harm to other players who can’t afford a skill reset.