Prioritize core items like Rylai's and Plasmic Parasite to scale into the late game. Singed is weak early but becomes a powerful disruptor.
Utilize proxy farming and Ghost to disrupt enemy lines and bait chases. Making enemies chase you is central to his strategy.
Singed is a macro-focused champion, relying more on game sense than mechanics. Focus on enabling teammates and frustrating opponents.
Fiora can parry your [E] with her (W). Always keep your distance while clearing lane, and use your [W] to prevent Fiora from closing in on you with her (Q).