User blog comment:Grymstorm/Pentakill, Looking for Fifth?/@comment-69.113.236.121-20110924025322

It doesn't make sense for it to be anyone other than Rumble or Corki. All of the Pentakill members thus far carry their instruments with them. Yorick has his bass, Mordekaiser has his guitar, Sona has her keyboard and Karthus has his microphone. Why would the drummer carry around just their drumsticks? The only characters that sit behind a machine (drum kit) are Corki and Rumble.