The Rock Steady Theme Deck, along with Luminous Frost, were released as part of the Burning Shadows set on August 4, 2017.
Rock Steady focuses on the types .
This Theme Deck is available in the Shop for 500 tokens starting on August 4, 2017.
Rock Steady has a couple very hard-hitting Fighting-type Pokemon, including Midday-Forme Lycanroc and Rhyperior from Burning Shadows.
Rhyperior‘s attack Rock Wrecker may be expensive with 2 Fighting and a DCE (and there are no DCEs in this deck), but 170 damage is enough to OHKO anything in the Theme Format. Rhyperior‘s Ability Toppling Wind can also be helpful as a disruption by discarding the top 3 cards of your opponent’s deck.
Lycanroc is fairly mediocre, but decent in the Theme Format, with its two attacks doing 30 or 100 damage.
Expansion: Burning Shadows
Release: August 4, 2017 (US)
Theme Deck: Rock Steady (SM-Burning Shadows)