CCing Singed can be really annoying if they have AoE stuff or stuff you don't need to really put much effort into to CC him. Like Ashe for instance is annoying as hell. Or a dude with frozen mallet, or something. But yeah the smarter thing is just to get a tenacity item that aren't merc treads there if that's a problem.
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No problem!
This is a cute and pop genocide of love!