Does Wind Demon card 648 cause it to attack twice if it can spend wind?

Wind Demon card #648 shows a template attack and then says "[spend wind] +1 Attack [different template]". If wind is available to spend, does it make two attacks (one with the first template, the second with the larger template)? Or is the "spend wind" effect meant to modify the first attack (so it gets +1 attack and uses the larger template instead of the smaller)? It is not clear from the card and we cannot find clarification in the rule book.