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Five furious Wild Boars with black fur and red eyes emerged out of Eleanora's shadows, charging through the use of their Special Skill [Berserk Charge] they managed to pin down the other two butlers that had turned into Lesser Demons into the ground behind the one Lesser Demon Butler that Eleanora was fighting.
BOOOOOMMM!!!
The five wild boars continued spamming their abilities, unlike conventional Spirits, Beast Spirit Summons from Gluttony didn't need any mana to use their Skills, and could constantly spam them and abuse them, although they were frail compared to normal spirits like Eleanora, they were still mighty if all five combined their efforts.
Check "The Protagnist's Sister Is Actually the Strongest"!