REDU format ruling
Sonic Jammer
Nearest-era rulings (Tengu, Sept 2011) — no REDU-specific archive exists.
Card effect (current official text)FLIP: Your opponent cannot activate any Spell Cards until the end of the End Phase of the next turn.
Rulings
- If you activate Sonic Jammer during your turn, it lasts until the end of your opponent's End Phase. If you activate Sonic Jammer during your opponent's turn, it lasts until the end of your End Phase.
- If Skill Drain is activated after Sonic Jammer's effect has resolved, the effect of Sonic Jammer is not negated because Skill Drain was not active when Sonic Jammer was flipped, activated its effect, and applied its effect.
- While Sonic Jammer's effect is applied, your opponent can still use the effects of Wave Motion Cannon, or Black Pendant when sent to the GY, or Field Spell Cards like Fusion Gate.
- While Sonic Jammer's effect is applied, your opponent cannot activate Spiritualism.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the REDU forum — sourced change requests get reviewed.