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.

Overall Stats

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
5 Death Count per person (max 4 deaths)
15 second potion cooldown

Normal

Level: 190
Cygnus HP: 63,000,000,000 (63 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 (20,300,000 EXP in KMS)
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.
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

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.