People saying Killer Tune is bad might be retarded
>Normal Mix or Reco, search the other one (also accessible via "Killer Tune Synchro", Synchro Overtake or Stone Sweeper)
>Synchro into Remix
This simple play is 3 interruptions and a potential game-ending floodgate
>Remix revive Mix/Reco, add back Reco/Mix, Synchro into Red Seal
>Reco pops a Spell/Trap for this
>Mix pops a monster for this
>Red Seal can banish a Tuner to negate a card's effects
>Red Seal also fucks with the Levels of monsters so playing it against Yummy makes all their monsters Level 2, preventing them from ever touching their Synchros, effectively auto-winning the matchup

Looks kinda cute