Black Lion Chest/Drop rate/Archive

Listed here are the archives for the drop rate research conducted on Black Lion Chests. With each change made to Black Lion Chests, the existing table is moved to a sub-page where it is preserved.

Update	Changes	Drop Rate Post-Update
09 September 2014	Removed the following items from Black Lion Chests: Scroll of Knowledge (+1 skill point) Essence of Luck (50) Essence of Luck (100) Basic Dye Pack drops rates have been reduced by half. Added the following items as uncommon drops from Black Lion Chests: Flame Dye Kit Frost Dye Kit Deathly Dye Kit Toxic Dye Kit Metallurgic Dye Kit Lion's Arch Survivors Dye Kit Lion's Arch Commemorative Dye Kit Heavy Crafting Bag Large Crafting Bag Medium Crafting Bag Utility Primer Weapon Tickets and Weapon Ticket Scraps have increased drop rates. All minis, backpacks, endless tonics, and permanent contracts have slightly increased drop rates.	Pending
03 June 2014	Black Lion Chests have been rebalanced, given a new icon, and given an entirely new UI to clarify unlocking and rewards. For two weeks, every chest includes an additional guaranteed Boost Enchantment Powder. New additions to the chests include: Boost Enchantment Powder (x4)—Uncommon Custom Arena Time Token (x5)—Rare Royal Terrace Pass (2 weeks)—Uncommon (during the Festival of the Four Winds) Scroll of Knowledge and Tome of Knowledge drops have been slightly increased. Mystery Tonic drops have been greatly reduced. Mini 3-pack (Set 2) drops have been replaced with Mini 3-pack (Set 3) drops.	Research
18 February 2014	Added Mini Marjory Delaqua Added Mini Mai Trin	Research
21 January 2014	Added: Instant Trait Reset Communal Boost Bonfire Essence of Luck (masterwork) Essence of Luck (rare) Metabolic Primer Scroll of Knowledge WXP Booster Gathering Booster Removed: Karma Booster Glory Booster Heavy Bag of Coins Name Change Contract Small Guild Discovery Medium Guild Discovery 1 copper New standard reward format is 2 rewards plus 1 booster Tonics changed from a guaranteed drop to an occasional drop Reduced drop rate of minis Endless Mystery Tonic changed from soulbound on acquire to soulbound on use	Research
1 October 2013	Added Mini Holographic Scarlet Added Mini Caithe Replaced Minis 3-Pack (Set 1) with Minis 3-Pack (Set 2) Removed Black Lion gathering tools	Research
23 July 2013	Added Black Lion Claim Tickets and Black Lion Claim Ticket Scraps Black Lion Key drop rate drastically reduced, with most chances replaced with ticket scraps	Research
9 July 2013	Added Tome of Knowledge	No research
25 June 2013	Added Plush Tybalt Backpack Cover Adjusted the drop rate of backpack sets to increase with each key used.	No research
14 May 2013	Removed Fused Weapon Claim Ticket	No research
30 April 2013	Added Box of Fun Added Cheetah Charr Backpack Set Added Quaggan Killer Whale Backpack Set Reduced drop rate of Name Change Contract	No research
26 March 2013	Added Fused Weapon Claim Ticket	No research
26 February 2013	Added Pink Quaggan Backpack Set Added Tiger Charr Backpack Set Added Name Change Contract (undocumented)	No research
14 December 2012	Added Guild Discovery items Added Heavy Bag of Coins Added Glory Booster Added Booster Multipack Added Permanent Hair Stylist Contract Doubled the drop rate of Permanent Bank Access Contract, Permanent Black Lion Merchant Contract, and Permanent Trading Post Express Contract Reduced the chance for Mystery Tonics to 25% Reworked drop rate for all items	Research
3 December 2012	Added Total Makeover Kit and Self-Style Hair Kit Increased chance to get Minis 3-Pack (Set 1) and Dye Pack	Research
1 November 2012	Removed Halloween skins	Research
22 October 2012	Added Halloween skins Chain Sword Skin Ghastly Grinning Shield Skin Greatsaw Greatsword Skin Grinning Gourd Rifle Skin Scythe Staff Skin Severed Dagger Skin Deathly Shoulder Skin Deathly Avian Shoulder Skin Deathly Bull's Shoulder Skin	Research
25 September 2012	Added Permanent Bank Access Contract Added Permanent Black Lion Merchant Contract Added Permanent Trading Post Express Contract	No Research