Each time a "Resonator" monster(s) is sent to the Graveyard as a Synchro Material: Target 1 card your opponent controls; destroy that target. Destroy this card during your 2nd End Phase after activation.
Destroys your opponent's Monster Cards / Destroys your opponent's Spell Cards / Destroys your opponent's Trap Cards / Destroys itself
There’s a bug with this card. Resonant destruction effect doesn’t activate when the summon of the Synchro monster is negated. The card clearly said “Each time resonant is sent to graveyard as synchro material” so it should’ve activated
I guess to be considered sent to GY as synchro material, the synchro summon must also be successful.
Finally a decent use for Red Rising Dragon. With Destruction on the field, summon RRD with a Level 2 Resonator, pop one card, activate RRD's effect to bring the Resonator back, then summon Red Dragon Archfiend to pop a second card.
If you have two of these on the field at once, your opponent's field becomes a fireworks display.