Resonator

"Resonators" are an archetype of Fiend-Type Tuner Monster Cards used by Jack Atlas and the Imposter Jack Atlas in the Yu-Gi-Oh! 5D's Anime. Their effects are centered around being useful towards Synchro Summoning and Stalling. They seem to rival the Synchron archetype as they also are a series of Tuner monsters used by Jack's rival, Yusei Fudo. There is one Resonator for each Attribute.

At the beginning Resonator monsters were all Level 3 but as the series progressed "Barrier Resonator" and "Force Resonator" were released and they are Level 2 and Level 1, yet this adds up to 3. In the anime, "Clock Resonator" is the only non-Fiend Resonator although it was changed to a Fiend-Type when released in the OCG.In Yu-Gi-Oh! 5Ds episode 152, during turn #2, Jack Atlus revealed a new Resonator monster known as Synchro Resonator.