You can reveal 1 "Red Dragon Archfiend" in your Extra Deck; Special Summon this card from your hand, also you cannot Special Summon from the Extra Deck for the rest of this turn, except Synchro Monsters. If this card is Special Summoned: You can activate this effect; during your Main Phase this turn, you can Normal Summon 1 "Resonator" monster, in addition to your Normal Summon/Set (you can only gain this effect once per turn). You can target any number of Tuners you control; change their Levels to 1. You can only use each effect of "Darkness Resonator" once per turn.