Mega Swampert is the Mega Evolution of Swampert, a Water/Ground-type Pokémon. Mega Evolving keeps its Water/Ground typing while it sharply raises its stats for the duration of a battle.
“Swampert predicts storms by sensing subtle differences in the sounds of waves and tidal winds with its fins. If a storm is approaching, it piles up boulders to protect itself.”
Mega Evolution debuted in Pokémon X & Y (2013) as a temporary, in-battle transformation. In the Pokémon TCG it appears first as “M” Pokémon-EX cards in the XY era, and again as Mega Swampert ex cards in the Scarlet & Violet "Mega Evolution" era — both of which are among the most chased pulls of their sets.
Chase Season tracks 1 Mega Swampert card across 1 set, with daily market prices and Chase Index rankings. The most valuable right now is M Swampert-EX from XY Black Star Promos at around $65.54.
Common questions about Mega Swampert, its forms, and its Pokémon TCG cards.