enel one piece card game TCG: Sound Loader Volume 2: this Character gains [Rush] Enel SP EB02-052 Japanese ONE

First of all, it lets you discard when you attack, buffing a creature as you do so

Earning AAD is to promote the second half, but there is a limit to the second half

Return to Dust, Grand Abolisher, Avacyn Angel of Hope, Mother of Runes, Path to Exile, Condemn, Swords to Plowshare, Oblation, Rootborn Defenses, Disenchant, Brave the Elements, Make a Stand, Mass Calcify, Austere Command, Fell the Mighty, Retribution of the Meek, Grasp of Fate, Oblivion Ring

You can get extra combat steps on landfall triggers and buff your creatures

There's endless demand for this card and limited supply - it only seems to get reprinted in premium sets