Sky Legend (Japanese: 強化拡張パック スカイレジェンドStrength Expansion Pack Sky Legend) is the name given to the sixteenth Japanese subset released during the Sun & Moon Era of the Pokémon Trading Card Game and the second to be considered as an enhancement of the tenth main expansion, Double Blaze, featuring the collection symbol "SM10b". The subset adds more of the newly introduced Tag TeamPokémon-GX to the TCG.
The Strength Expansion Pack Sky Legend is a subset containing at least 54 cards that was released on April 26, 2019 in Japan. The subset introduces Z-Crystals to the TCG as Pokémon Tool cards which give a GX attack to a Pokémon provided it has a specific attack. There is a particular focus on the Grass, Water, and Colorless types, as well as Legendary, Mythical, and Ultra Beast Pokémon.