MapleStory: Black Mage

Black Mage is an update following ARK.

1st: Gathering of Heroes

 * Tenebris Expedition: Prelude of War (Part I)
 * Scattering Wishes Event (2 Weeks)
 * Alliance Support Event (2 Weeks)
 * Tera Burning to Level 200
 * Level 200-220 EXP Reduction
 * Maple Content Guide Revamp
 * Hyper Skill Changes
 * Vanishing Journey Weekly Quest
 * Monster Park: Chu Chu Island Dungeon
 * Esfera Daily Quest
 * New Resolution: 1280*720
 * Beta Test Resolution: 1920*1200 & 1920*1080

2nd: Prelude of War

 * Tenebris Expedtion: Flame of Desire Activation (Part II)
 * 1) Alliance Rank System
 * 2) Alliance Supply Shop
 * 3) Alliance Skill System
 * 4) Defense Mission: Captive Soldiers (2 Weeks)
 * 5) Defense Mission: Sky Helper (2 Weeks)
 * 6) 100 Person Defense Mission: Karianne's Attack
 * 7) Change of Maple World: Darkness Messenger
 * 8) Change of Maple World: Black Chains
 * Arcane River: Tenebris 1st Area 

3rd: Labyrinth

 * Tenebris Expedition: Hero Rank Unlocked (Part III)
 * 1) Alliance Rank: Hero
 * 2) Alliance Skill Update: Legend Tab
 * 3) Alliance Supply Shop Update
 * 4) Defense Mission: Flame Bird's Help (3 Weeks)
 * 5) Defense Mission: Twilight's War (3 Weeks)
 * 6) Change of Maple World: Strike
 * 7) Change of Maple World: Desire Harrier
 * Arcane River: Tenebris 2nd Area 
 * Boss: Commander True Hilla
 * 3rd Set of Class-Specific 5th Job Skills

4th: Final Battle

 * Tenebris Expedition: Legend Rank Unlocked (Part IV)
 * 1) Alliance Rank: Legend
 * 2) Defense Mission: Light of Purification (Until Black Mage is defeated)
 * 3) Defense Mission: Final Naval Warfare (Until Black Mage is defeated)
 * 4) Change in Maple World: Aura of Life
 * 5) Change in Maple World: Crevice of Darkness
 * Arcane River: Tenebris Final Area 
 * World Boss: Black Mage
 * Quality of Life Updates

Trivia

 * In Latin, "tenebris" is the dative and ablative plural of "tenebra", which means "darkness".
 * A limen or a liminal point is the threshold of a physiological or psychological response. A stimulus is perceivable on one side of a limen but not on the other side. It is borrowed from the Latin word "limen" which means "threshold".