While back as Flamewar, Brash Veteran, you can also pay one generic mana to discard your hand and add all exiled cards to your hand
As the art had to be a seven-headed dragon, I looked for a mechanic that played into the cards seven-headedness
Dismember Source: Reddit Dismember is an interesting choice, as a black instant that sees quite a bit of play in Vintage, Legacy, and Modern

Here's the list: Unlimited Tropical Island (PL) Tundra (PL) Revised Badlands (PL, LP, GD, EX, NM) Bayou (PL, LP, EX, NM) Plateau (PL, LP, GD) Savannah (PL) Scrubland (LP, GD) Taiga (PL, GD) Tropical Island (PL, LP, GD, EX) Tundra (PL, LP, GD, EX) Underground Sea (PL, GD, EX, NM) Volcanic Island (PO, PL, LP, GD) Foreign Black Bordered - German Badlands (PL) Foreign Black Bordered - French Badlands (LP) Bayou (PL, GD) Plateau (PO, PL, GD, EX) Savannah (LP) Scrubland (PL, GD) Taiga (PL, LP) Tropical Island (PO, LP) Underground Sea (GD) Foreign White Bordered - German Badlands (LP, GD, EX) Bayou (GD, EX) Plateau (PL, LP, GD) Savannah (LP, GD, EX, NM) Scrubland (GD, EX) Taiga (GD) Tropical Island (PL, GD, EX) Tundra (LP, NM) Volcanic Island (PO, LP, GD, EX, NM) Foreign White Bordered - French Bayou (LP) Savannah (PL, LP) Scrubland (PL) Badlands (GD) Taiga (LP, GD, EX) Tropical Island (LP, EX) Volcanic Island (EX) Collectors' Edition Bayou (GD) 30th Anniversary Edition From the 30th Anniversary Edition also comes a Will-o-the-Wisp (Version 2, NM)

"The corner shadow will be either just the normal Magic card corner, or if it's the Alpha cards, the corners will be more round." Jones adds that the rare card was generally in the front of the booster packs and that players figured out how to look through the back of the packs to see which rare card was in it