From Bulbapedia, the community-driven Pokémon encyclopedia.
Mental Might is a Theme Deck featuring - and -type Pokémon. It is an exclusive deck available in the Pokémon Trading Card Game Online. It features Swoobat, Gallade, and Miltank.
This deck is given as the first Daily Login Bonus to new players. Prior to the 126.96.36.1995 game patch (August 13, 2014), the Basic Orange deck was unlocked as the first Daily Login Bonus. Unlike most other online exclusive decks, this deck cannot be used in the Trainer Challenge.