In Anime Apocalypse, the Shadow Monarch Ability, inspired by Sung Jin-woo from the Solo Leveling manhwa, is a Mythic-rarity ability that allows players to wield two daggers with impressive reach and speed. Players can acquire this Ability through the Ability gacha using Normal Spins (0.8% chance) and Lucky Spins (3% chance), with a guaranteed Mythic Ability on the 100th Spin, providing a 33% chance to get Shadow Monarch among three available Mythic Abilities.

The moveset includes a four-hit basic attack, Assassin Dash, Slash Barrage, Mutilation Cut, Shadow Monarch cutscene move, and Arise, which summons shadows to attack enemies. Players are encouraged to prioritize upgrades in cooldown and damage to enhance the Shadow Monarch's effectiveness in battles. Rolling the Reaper or Flash Traits further boosts the Ability's performance, making it a formidable choice for players seeking power in the game.