Kewl Tune RS

Per-phrase breakdown

• Gains 300 ATK for each Tuner in the GYs. (Continuous)
• The Levels of monsters your opponent controls with 1700 or less original ATK are increased by 1. (Continuous)
• During the Main Phase (Quick Effect): You can banish 1 Tuner from your GY, then target 1 face-up card your opponent controls; negate its effects until the end of this turn. (Quick)
• You can only use this effect of "Kewl Tune RS" once per turn. (Condition)

Judge-facing facts

• Synchro Summon requires exactly "Kewl Tune Reco" and 1 or more Tuners
• ATK gain is a Continuous Effect that counts Tuners in both players' GYs
• Level increase is a Continuous Effect applying only to opponent's monsters with 1700 or less original ATK
• Negation effect is a Quick Effect restricted to the Main Phase
• Banishing 1 Tuner from your GY is the cost to activate the negation effect
• Negation effect targets 1 face-up card the opponent controls
• You can only use the negation effect of "Kewl Tune RS" once per turn

Card-specific notes from database

• No card-specific database excerpts — use rulebook, policy, and oracle.