MapleStory/Empress Cygnus

Empress Cygnus is a powerful boss in Future Ereve. Players level 140 or more can fight the Easy mode and players level 170 or higher can fight the Normal mode. Participant count is 1-6 in a party. Maximum 1 per week for easy mode, 2 per week for normal mode and killing an advanced knight inside is counted as a kill count. Normal mode clearance count can be reset using a Kritias Boss Clear Reset ticket.

Easy

 * Level: 190
 * Cygnus HP: 10,500,000,000 (10.5 billion)
 * Resistant to all elements, including Physical
 * 100% DEF
 * Shinsoo HP: 400,000,000 (400 million)
 * Chief Knights' HP: 1,050,000,000 each (1.05 billion HP each)
 * 2,040,000 EXP (2.04 Million EXP)
 * 5 Death Count per person (max 4 deaths)
 * 15 second potion cooldown

Normal

 * Level: 190
 * Cygnus HP: (All servers except MSEA) 63,000,000,000 (63 Billion) / (MSEA) 6,300,000,000 (6.3 Billion)
 * Resistant to all elements, including Physical
 * 100% DEF
 * Shinsoo HP: 2,100,000,000 (2.1 Billion)
 * Chief Knights' HP (V1): 2,100,000,000 each (2.1 Billion HP each)
 * Chief Knights' HP (V2): 6,300,000,000 each (6.3 Billion HP each)
 * 204,000,000 EXP (204 Million EXP)
 * 5 Death Count per person (max 4 deaths)
 * 30 second potion cooldown

Getting there
From Leafre, head to Temple of Time by talking to Cobra in the Leafre Station. Head to the right for 2 maps to reach. Enter the Gate to the Future and walk towards the Cygnus' Chamber.

Limits

 * Max 1 clear per week for easy mode, 2 clears per week for normal mode, resets every Thursday. Killing a Chief Knight counts as a clear. Normal mode clear limit can be reset using a Kritias Boss Limit Reset Ticket.
 * Pre-requisite quest: Cygnus Garden cleared (only for Normal mode, Easy does not require any quests).
 * Requires a dream key to enter every time for Normal mode. To make a dream key collect Dawn, Blaze, Wind, Night, Thunder Stone. You can make 1 key per day.

Skills

 * Partial Map Dark genesis (100% damage)
 * Full Map Dark genesis (90% damage)
 * Damage Reflect (to a member with the lowest MaxHP)
 * Tornado (Traps you and deal 4000 damage over time)
 * Fires a projectile at you. (40%)
 * Uses Phoenixes to create a trail of fire that deals damage when you step it.
 * Summons Advanced Knights to help.
 * Summons Chief Knights to help throughout (for V1, one at a time; for V2, all at once). She summons V2 once all of the V1 Chief Knights have been spawned, and when her HP is below 20%. She cannot die if all V2 knights are not killed if they are summoned.
 * Summons Shinsoo which can heal all surrounding mobs for 21,000,000 HP (21 Million HP Heal) and can make Cygnus temporarily invincible.
 * Transform you into a Ribbon Pig for 10 seconds.
 * Nullifies Potential for 1 minute
 * Banish you to another map with monsters.

Rewards

 * Ruin of Chaos (Swap 15 for an Empress Set Weapon of your choice)
 * Ruin of Darkness (Swap 5 for an Empress Set Armor of your choice)
 * Boss Honor Medal
 * Empress equipment recipes
 * Occult Cubes (not in GMS)
 * Rebirth Flames (not in GMS)
 * Cube Fragments (GMS only)
 * Master Craftsman's Cubes (GMS only)
 * Cygnus soul shard (collect 10 for a random Cygnus weapon soul)