Who Counters Boss Arunka in Epic Seven?

Notos, Frieren, Monarch of the Sword Iseria and other hard counters counter Boss Arunka. Ferocious Stand only protects against attacks that pick a target; sweeping AoE that hits everyone bypasses the redirect and reaches the allies she is trying to shield.

Wide, non-targeted AoE damage: Ferocious Stand only protects against attacks that pick a target; sweeping AoE that hits everyone bypasses the redirect and reaches the allies she is trying to shield. Buff-block and unbuffable applied before she acts: Ferocious Stand and her self-barrier can be prevented from ever being granted, leaving her without the forced-target protection or the Defense-scaled shield she relies on to survive. Cleanse, immunity, and buff-duration cuts on the enemy team: Her offense hinges on the dispel and the Defense break from her cooldown skill; enemies who cleanse off the break, sit behind immunity, or shorten the debuff blunt her contribution to nothing. Waiting out her long cooldown: The dispel-and-break strike sits on a 3-turn cooldown, so once it is spent she falls back to a weak single-target poke; patient teams can simply act through the window until it returns.

In current Champion+ RTA, Notos has one of the strongest records against Boss Arunka (59% win rate over 57,640 games).

Buff-stacking and shield-reliant enemies: Her cooldown strike dispels every buff on its target before it lands, so a single enemy leaning on immunity, attack stacks, or its own barrier gets wiped clean and then hit for full damage. Teams that try to bypass her allies: Ferocious Stand forces enemies to attack her while it holds, so dive comps aiming for a back-line carry get funneled into a high-Defense wall that only grows tankier as her barrier scales off that Defense. Damage-over-time and chip attackers that feed her: Every time she is struck she gains Combat Readiness, so opponents who poke her repeatedly hand her faster turns and quicker access to her dispel and Defense break. Defense-stat bruisers and tanks: Both single-target hits apply decreased Defense (1 turn on the basic, 2 turns on the cooldown strike), cracking open durable Defense-scaling opponents and softening them for her team.