The April 25, 2025 patch added +1 accessory drops to Isiloon and Felankor (the notes spell it Isilioon, the mob page says Isiloon). Stats below are from the mob pages on BianKO's site, which list no drop rates or zones.

Isiloon, Felankor, Ultima and War Monument (BianKO mob pages)
Boss (id)LevelHPACCoinsMain drop
Isiloon (5551) 83 1,564,000 7,000 9,318 5.500 KC Voucher, Gold Bar
Felankor (7035) 83 1,981,241 3,200 8,852 5.500 KC Voucher, Gold Bar
Felankor (9299) 83 2,381,241 6,000 8,852 2.750 KC Voucher, Silver Bar, Gold Bar
Ultima (6551) 83 7,574,520 9,455 18,528 Switching Premium, Silver Bar
War Monument (9084) 80 2,800,000 2,500 Silver Bar, 5.500 KC Voucher

Felankor drops: two records

There are two Felankor records with drops, and the pages don't say which one spawns. Record 7035 matches the April 25 change: a 5,500 KC Voucher and the full 23-item +1 accessory list. Record 9299 is tankier (2,381,241 HP, 6,000 AC) and drops a 2,750 KC Voucher, Silver Bar, Gold Bar and accessories without a plus.

Group drops

Group drops (items on 9299, 6551 and 9084 are plain, no +)
BossGroup drop
Isiloon (5551), Felankor (7035) 23 +1 accessories: Ring of Courage, Ring of Life, Ring of Magic, Heros Valor, Legionnaire Band, String of Skulls, Cockatrices, Minotaurs, Lillimes and Leech Kings Earrings, the four class earrings, Sash of Sorrows, Belt of Dexterity, Amulet of Dexterity, Amulet of Strength, light Belt of Life, Diamond Ring, Shio Tears, Imir Ring, Flame Ring
Felankor (9299) Ring of Life, Amulet of Strength, Ring of Courage, Secret-Silver Earring, Elf-Metal Earring, Platinum Earring, Silver Earring, Skeleton Belt, Scorpion Shield, Priest Pendant, Opal Earring, Amulet of Dexterity, Warrior Pendant, Elf Belt, Elemental Pendant, Diamond Ring
Ultima (6551), War Monument (9084) Ring of Life, Ring of Magic, Ring of Courage, Warrior Earring, Cleric Earring, Rogue Earring, Mage Earring, Skeleton Belt, Scorpion Shield, Elf Belt, Lillimes Earrings, Leech Kings Earrings, Warrior Pendant, Elemental Pendant, Priest Pendant

Ultima and Switching Premium

Ultima (6551) has the biggest HP pool on the list at 7,574,520. The Switching Premium in its main drop sells for 700 AB in the Power Up Store, runs 30 days once used, and lets you swap between EXP, WAR and DC premium. Its group drop is the same plain accessory list as War Monument.

What the KC vouchers are worth

  • 5,500 KC Voucher: Isiloon (5551), Felankor (7035), War Monument (9084). The same voucher costs 6,050 KC in the Power Up Store.
  • 2,750 KC Voucher: Felankor (9299). Store price 3,025 KC.

Other records with the same names

The database also has Isiloon, Felankor and Ultima entries with no drops or different drops. Some look like event ([Event] Felankor) or leftover entries; the site doesn't say which ones are active.

Other records with the same names
Record (id)LevelHPDrops
Isiloon (5501) 83 800,015 Emblem of Honor
Isiloon (5701) 170 1,300,015 Gold Bar
Felankor (5702) 83 1,981,241 Royal Emblem
Felankor (9415) 230 1,081,241 Gold Bar
[Event] Felankor (9057) 230 1,981,241 no drops
Ultima (6501) 83 847,452 Warrior Pendant, Scorpion Shield; group: Chitin Shell / Complete (+1) and +1 weapons

FAQ

Where and when does Felankor spawn?
The site doesn't list it. Mob pages have no zone field and no boss spawn timer has been posted.
Which boss gives the most KC?
Per the mob pages, the 5,500 KC Voucher is in the main drop of Isiloon (5551), Felankor (7035) and War Monument (9084). Isiloon is the softest of the three at 1,564,000 HP.
Does Ultima drop +1 accessories?
No. Ultima 6551's group list is plain accessories, Scorpion Shield and pendants. The +1 accessories are on Isiloon and Felankor (7035).
What comes with Switching Premium?
Per the premium page: Trinas Piece x1, Water of Ibexs and Potion of Crisis [LE] x1000 each, [Arty] Wing Voucher x1, and 30 each of HP Scroll 40%, Scroll of Attack and Scroll of Armor 400.

Related guides