Sets celebrating milestone anniversaries, featuring legendary Pokmon, or introducing new card types often generate significant collector interest
Given how hard it was to reach 70,000 points in 2005 (when this card was printed), this is just a super rare card
While you can copy legendary Birds, you can only keep one of them, as the legend rule will still apply
But sneak an attack in with these guys and watch out for cards that are way more busted than a 7/7 with trample, think along the lines of Bloodthirster, Worldspine Wurm, or Blightsteel Colossus
Not only this will circumvent the high retreat cost Weezing has, but also help you to immediately start setting that Weezing up again in full HP, should you ever need it back from the bench