But the three monsters used for the summon each have an effect that FREAKING LOWERS YOUR OPPONENT'S MONSTERS ATTACK TO 0! It's effect is only usable once per card but it does allow you to get rid of big threats like Blue-Eyes and such.
There is only one reason to summon gg: style. If you already have all 3 pieces ob the field then you probably could uqve finished the duel 2 turns ago or more. The only situation where summining this card would be useful is if all 3 pieces have been locked down with mask of the accursed
One reason you might want guardian is because the opponent has the chance to win off deck drain. For example they play a blue eyes but keep it in attack mode and dont attack. The kazejin,suijin and sanga effect is now useless creating a potential stalemate. FIrst one to run out of cards wins.
no, level 57 std duelists such as equip and destroy or Insect fortress etc can easily wipe your 500LP in 1 turn .. especially Equip and Destroy deck..Gearfried + Black Pendant