You are purchasing (1) Knuckles the Echidna Artifacts deck with all cards pictured above. The Sonic Secret Lair brought us some awesome mechanically-unique legendaries, and Knuckles aims to put an alternate win condition in the command zone. The game plan is relatively simple: Accumulate 30 artifacts in play, either through the plethora of tokens you generate, or through sheer grit by hard casting them. The next step is you have Knuckles live for a turn, and then...you win! A very cool deck!