Dark Matter and Rainbow.
These two hands down. Both rush fast and establish control with ease. The first few turns are crucial if they don't run you down with massive control and plenty of dmg. That's your window of opportunity, your
only window. And they do it vs all decks out there.
They have no specific counters imo.
If I had to choose, I would pick rainbow.
Octane can be countered with a mirror shield or jade. He is a joke really. Only have 4 explodes too.
Eternal and Hermes fails miserably to Protect Artefact and shield effects. Hermes can be nasty if he gets a protected faren but that is so rare.
Divine Glory, is capable of rushing and exploding en masse but shield effects and good healing stops him.