Abaddon's Advent

"Summoned By the Fifth Trumpet: Demon of Ruin, Abaddon's Advent" (第五のラッパが呼び出した 滅びの悪魔 アバドン降臨) was a battle event in the Seraph of the End: Bloody Blades game that ran from February 15 to February 29, 2016. It featured Krul Tepes.

Players were required to defeat Abaddon in order to stand a chance to obtain a copy of 0263 Krul Tepes as a drop reward. As with all other battle events, the drop rate increases with difficulty.

Event Quest
Quest title: Unleashed Fear (解き放たれし恐怖)
 * Normal
 * Stamina: ???
 * Enemies
 * Lv. 20 Abaddon (Light)
 * Rewards
 * Hard
 * Stamina: ???
 * Enemies
 * Lv. 40 Abaddon (Light)
 * Rewards
 * Demonic
 * Stamina: 30
 * Enemies
 * Lv. 22 Ahim Kuske (Light)
 * Lv. 23 Deborah Herma (Light)
 * Lv. 24 Joseph Fink (Light)
 * Lv. 25 Wimm Weiz (Water)
 * Lv. 55 Abaddon (Light)
 * Rewards
 * ★: 50,000 Gold, 50,000 Character EXP
 * ★★: Cursed Demon Stones x1
 * ★★★: 70,000 Gold, 70,000 Character EXP
 * Lv. 25 Wimm Weiz (Water)
 * Lv. 55 Abaddon (Light)
 * Rewards
 * ★: 50,000 Gold, 50,000 Character EXP
 * ★★: Cursed Demon Stones x1
 * ★★★: 70,000 Gold, 70,000 Character EXP

Ultra-Demonic: King of the Abyss (奈落の王)
 * Stamina: 90
 * Enemies
 * Lv. 27 Ahim Kuske (Light)
 * Lv. 28 Deborah Herma (Light)
 * Lv. 29 Joseph Fink (Light)
 * Lv. 30 Wimm Weiz (Water)
 * Lv. 80 Abaddon (Light)
 * Rewards
 * ★: 100,000 Gold
 * ★★: Cursed Demon Stones x1
 * ★★★: SSR Asuramaru (Water), SSR Asuramaru (Grass)