Doubleshot

Doubleshot grants a character a chance to make an additional attack roll with their ranged or thrown weapon any time they make an attack. The additional roll is made on the target of the initial attack. Doubleshot only applies to ranged and thrown attacks.

Doubleshot was introduced as part of the Update 19 combat changes. Many attack speed bonuses were converted to Doubleshot effects at that time.

Update 28 Patch 1 changes:
 * Manyshot and Ten Thousand Stars no longer reduce your doubleshot chance.
 * Repeating crossbows now have 1/3rd the chance for Doubleshot.
 * Doubleshot can now "wrap" and cause a third or fourth shot if it goes above 100%.

Feats

 * Doubleshot (ML28 Epic Destiny Feat): Passive +10% Doubleshot
 * Double Shot (Primal Past Life Stance): Passive +3% Doubleshot per stack
 * Manyshot (Feat): Active +120% Doubleshot, longbow and shortbow only
 * Ten Thousand Stars (Feat): Active bonus to Doubleshot equal to monk level * 5
 * Scion of the Astral Plane (Legendary Feat): Passive +4% and an additional +4% if you are centered

Enhancement bonus

 * Category:Doubleshot items
 * Random items with Rapid Shots suffix
 * Random armors with Flurry prefix
 * Flawless Shadowscale Armor with Shadow Striker
 * Celestial Champion - Divine Crusader Tier 5 ability - When you critically hit with an attack, you gain a stack of Celestial Fervor (+1% Enhancement Bonus to Doubleshot per stack). Stacks up to 10 times, with a duration of 6 seconds.

Sentient Gem Filigree (untyped bonuses)

 * Zephyr: Doubleshot +1%
 * 2pcs Celerity Set Bonus +2%

Class enhancements

 * Artificer
 * Battle Engineer - Tier 4 Ability - Agility Engine +3%/6%/10% Doubleshot while wearing a rune arm
 * Bard
 * Swashbuckler - Tier 2 ability - Double Shot Boost: Activate to gain +10/20/30% Action Boost bonus to Doubleshot for 20 seconds. Usable 5 times per rest.
 * Warchanter - Tier 4 ability - Reckless Chant: Passive +2%/4%/6% Music bonus to Doubleshot.
 * Fighter
 * Kensei - Core ability 3 - Strike With No Thought: Passive +3% to 6% Doubleshot depending on how many Kensei core abilities you have.
 * Kensei - Core ability 6 - Alacrity: Passive +15% Doubleshot
 * Ranger
 * Arcane Archer - Core ability 5 - Shadow Arrows: Arcane Archer Secondary Imbue Toggle: +5% Doubleshot chance with bows.
 * Arcane Archer - Core ability 6 - Master of Imbuement: Passive +20% Doubleshot chance.
 * Deepwood Stalker - Tier 4 ability - Killer: +5% morale bonus to Doubleshot chance per stack. Earn stacks by killing. 15s duration. The Killer buff can stack up to 2/3/4 times.
 * Deepwood Stalker - Tier 5 ability - Strikes Like Lightning: +20% Doubleshot.
 * Rogue
 * Assassin - Tier 4 ability - Killer: same as DWS Killer
 * Mechanic - Tier 5 ability - Rapid Fire: Passive +3%/6%/10% Doubleshot

Race enhancements

 * Elf - Tier 4 ability - Skill: Passive +3% Doubleshot
 * Morninglord - Tier 4 ability - Skill: Passive +3% Doubleshot

Guild bonus

 * Seasoned Archer - +2% Guild bonus to Doubleshot

Epic Destinies

 * Zeal of the Righteous - Divine Crusader Level 5 innate ability - Gain 50 stacks of Righteous Zeal (+1% doubleshot per stack). Decays by 1 stack every 3 seconds.