Help with a Warrior Cat's prophecy?

I need a prophecy for this situation: a new clan, Duskclan, needs a leader. So Starclan has chosen a cat, Dusk, a rouge who lives far from clan territory, but the clan disagrees on the medicine cat's words. The clan thinks it should be a muscular gray tom, who is sorta already deputy, Shadowclaw. So I need a prophecy to convince them he's not the choice of Starclan.......... This is all for a sort of book I'm making based on the warriors so...yeah! Please help!!