You mean allure queen? Allure queen MUST'VE been summoned first by it's own effect or via level up. After allure queen is destroyed and still in grave, then you can equip it to slash, but if it was not allure queen monster, then you need to be specific about the monster name, since there's also a lot of queen monster
Yes, It's Amazoness Queen. First duel BEWD was on the field,I fusion summoned and equipped queen. KO but no effect. Second duel was Brave neos, I fusion and equipped queen but didn't attack. They have destroyed queen by effect (storm neos) then attack my RE fusion with brave neos. Still no effect. For me the effect didn't work any single time.