Classification Maximum Ascension Element Skills
rarity-rare.png rarity-rare.png Death
  • Master Assassin
  • Lunar Blaze
  • Nightfall
  • Cursed Touch
Aku can be unlocked after completing "A Tale of Two Brothers" campaign.


Tap the icons below to find out more about Aku's Skills

Master Assassin

Cost: 5 Mana
Summon 1x Master Assassin Troop

Ancient Level Level
Level 1 1
Level 2 2
Level 7 3
Level 12 4
Level 17 5
Level 22 6
Level 27 7
Level 32 8
Level 37 9

Astral Gear


The glorious city Arcadia had been part of Estara since ancient times. It was ruled by two godlike brothers: Bask ‘the Sun’ and Aku ‘the Moon’. Their rule was split into two opposite yet complementary areas of authority. The Sun ruled at day in charge of life and light, while the Moon ruled at night governing over darkness and death.

Obtain Mastery Stars in game to unlock more backstory!