About tournament mission

Do i need to win 2 ranked games at flex 5v5 or we need to do it on the new Clash mode? If someone wants to play with me add Sweet Charm, S5, main supp. From all supp champs i only don't have {{champion:432}}, {{champion:201}} and {{champion:267}}. EDIT: The mission is completed, you can complete the mission solo, duo or as team of 5, but only at flex queue. Now i need only team for Clash mode if anyone is interested.
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