That new support card will play havoc on mew deck too, getting rid of two double turbo energy on turn two is huge. It should give miraidon deck some breathing room by shutting down fusion strike system.
They do poorly against Mew decks. This will force Mew to find a vacuum + tablet + boss for the knockout. However Path Judge mew runs 3-4 vacuums. Other decks can just Arven into a tool jammer.
