Indeed, I extended the array to calculate for AC 29+, and found that at that point, the difference becomes less than 1%. Note an important fact however: this improvement becomes far less pronounced at higher ACs on the target. We can see that having Advantage is producing a modest, ~9.6% improvement in overall damage for an individual attack, but it's just not going to compare to a direct, +100% improvement in damage when using Swift Quiver. I've also included single attacks with a longbow, using a normal roll and an EA-Advantage roll. Unfortunately, while having Advantage, especially Advantage with Elven Accuracy, is a pretty decent boost to damage output, it's just not going to compare to having two additional attacks.īelow, I've constructed a table representing the statistically average damage output per round of this character, assuming no other buffs or expended resources than what you have specified, and assuming that with using Swift Quiver, one attack gains Advantage (and thus Elven Accuracy), and with Greater Invisibility, both attacks gain Advantage (and thus Elven Accuracy). Swift Quiver is always going to offer greater damage output

For the sake of argument, we're going to assume that the way this character uses Elven Accuracy (which, when a creature has Advantage, allows one of the Advantage dice to be swapped with a new die, at the user's whim-XGE 74), is that this character will always swap their lowest rolled die with the new one, which is the mathematically optimal way to use it.

Swift quiver 5e