Widowhail: Quiver Bonus Scaling, Best Rolls and Runeforging in Path of Exile 2 0.5

Widowhail's modifier reads (150-250)% increased bonuses gained from Equipped Quiver. The key word is 'increased': it takes the numeric value of a quiver bonus and increases it by the Widowhail roll. A quiver bonus of +40 to Maximum Life with a 250% Widowhail becomes +40 x (1 + 2.50) = +140 to Maximum Life. The general formula is: Scaled Quiver Bonus = Base Quiver Bonus x (1 + W/100), where W is the Widowhail roll (150, 200 or 250).

Because the multiplier is (1 + W/100), the effective factors are x2.5 at 150%, x3.0 at 200%, and x3.5 at 250%. This is confirmed by the documented arrow example: a quiver whose implicit grants 'Bow Attacks fire an Additional Arrow' (+1) combined with an explicit '+1 to Projectile Count' sums to 2 before Widowhail; at a 250% effect that 2 becomes 2 x 3.5 = 7 additional arrows. The stats are added together first, then multiplied.

What 'bonuses gained from Equipped Quiver' means in practice is every scalable numeric bonus the quiver grants to your character - both its implicit line and its explicit affixes, and also corruption implicits. This includes added damage (flat), increased percentages (attack speed, crit, damage), attributes, resistances, life, accuracy, projectile speed, pierce counts and additional-arrow mods. The multiplier does not invent new stats; it only scales the ones already present.

A subtle point many players miss: the bonus is multiplied, not added as a second copy. A quiver with +20% increased Attack Speed and a 200% Widowhail yields +20% x 3.0 = +60% increased Attack Speed from that line - it does not become +20% + 200%. The Widowhail roll is itself the 'increased' magnitude applied to the quiver's underlying bonus value.

Why the bow's own DPS is low but the build works: Widowhail replaces 'good weapon stats' with 'good quiver stats, amplified'. A Rare quiver can easily carry large flat added damage, double-digit increased attack speed, skill levels, life and resistances. Multiplying all of that by 3.5 produces more total offensive and defensive value than the flat physical damage a normal bow would provide, at the cost of needing a strong, well-rolled quiver to justify the bow slot.

• Formula: Scaled = Base x (1 + W/100). Factors: 150% -> x2.5, 200% -> x3.0, 250% -> x3.5.
• Implicit, explicit and corruption quiver bonuses all count.
• The bow ignores its own low physical damage; the quiver is the weapon.
• Stats on the quiver are summed, then multiplied - so +1 implicit and +1 explicit arrow become 7 at 250%.
• It does not add new affixes, only amplifies existing ones.