Ive found that taking out energy acceleration early game and draw support late game, or when your opponent has a small hand, are the best times to do so
If your LP are higher than your opponent's, you take any battle damage your opponent would have taken from battles involving this attacking card, instead
He costs one less if the player has an Inventor on the table , and he has a high defense stat of four for the amount it takes to play him
Decks With This Card Recent public and tournament decks using Dragon Master Knight
The Archfiend combo is another example, I am now playing the Archfiend combo, but in a deck that looks very different from anything I or others were trying when the combo first came on the scene and a lot of that has to do with the meta changing to one where Archfiend is well positioned
You can only activate 1 "Resonator Command" per turn