January 17, 2013 Patch

{{Patch layout
 * source = http://www.dota2.com/news/updates/9765/
 * source-title = Dota 2 Update - January 17th, 2013
 * before = 2013-01-10
 * after = 2013-01-18


 * notes =

Added Least Played mode to matchmaking! In this mode players can only choose from a list of their least played heroes. This mode is great for learning new heroes since everyone will be on equal footing.

Gameplay

 * : Fixed Backtrack working on HP Removal.
 * : Mystic Snake now returns to restore you when it is blocked by Linken's Sphere.
 * : Fixed an exploit with boot selection
 * : Fixed an issue with Permanent Invisibility on respawning.
 * : Fixed Impale based stuns not getting removed by Dark Pact.
 * Issuing the haste command to the courier with the new UI no longer interrupts channeling spells on the primary hero.
 * Fixed an exploit allowing items to be combined from multiple owners.
 * Fixed Thunderclap being purgeable.
 * : Fixed Malefice being purgeable.
 * : Fixed Poison Touch being purgeable.
 * Fixed 's Dispel not dealing damage to illusions.
 * Fixed illusion damage interaction with other things that modify outgoing damage percentage (like Quelling Blade).
 * Fixed being unable to target yourself with Force Staff if you are magic immune.
 * Least Played Mode: The top 20 winning heroes for each player will be disabled. Heroes with less than 3 wins will not be disabled.

UI

 * Fixed an exploit that let you bring up the panel to repick after the game started
 * The Balanced Shuffle button now shows up for all non-league private lobbies.
 * Fixed 's darkness indicator persisting across games.
 * Abandoned games are marked in the match history

Bots

 * Added bot.
 * Added bot (and Warlock Golem bot).
 * Added support for bots using unique attack modifiers to harass while laning.
 * Fixed bug that was causing bots to farm for buyback much earlier than they should.
 * Fixed bug that was causing some bots to get stuck when trying to use a Tango.
 * Bots that are lanemates of a carry will no longer jungle during the laning phase.
 * If a hero is already jungling during the laning phase, additional bots will not jungle.

Workshop

 * Added Import Courier and Import Ward.
 * Added support for animations and attachment points.
 * Added Quicksave & Quickload import buttons to make it easy to redo a previous import.
 * Added, , , , , and to the Hero list (and http://www.dota2.com/workshop/requirements).
 * Preview now allows you to add multiple cosmetic items onto the preview Hero.
 * Preview now has a Portrait camera view.
 * Preview now allows you to select a skin on models with multiple skins.
 * Preview now visualizes attachment points on models that require attachments to be valid.
 * Improved validation of polygon and bone count of submitted models.

}}
 * changes =
 * Renamed Outworld Destroyer to.