Calamary is an enemy introduced in Into the Future, chapter 3.
She can be quite an annoying enemy due to her ability: It is long ranged and has the ability to lower attack power of cats to 10% (For example, an uber that would normally deal 100,000, would only deal 10,000), so be wary when fighting it! However, if you have Units that Resist Weaken (Like Akira, Lesser Demon Cat or King Gamereon), she is an easy prey.
Due to Calamary's high range, Radiant Aphrodite is recommended as her range is 600 and she inflicts triple damage against aliens, so she will land mighty, non-weakened blows. Li'l Nyandam is a non-uber alternative. If you have no units that outrange her, use tanky ones like Jamiera/Crazed Mythical Titan. Units with fast movement speed such as Sanada Yukimura or Awakened Bahamut can also be used, as they might evade Calamary's ability and deal huge damage to her. If Calamary is being defended by peons, Crazed Gross Cat will be effective, as the waves resulting from an attack will reach her and deal moderate damage. Akira can be super useful against her as he is effective against Aliens and cannot be Weakened.
Ship crash-landed near the famous Tsukiji fish market. She introduced a new translucent style sense that's now très chic at the harbor. Greatly weakens opponent's attack.