The name, the art, and even the tone of the card sell the idea that power doesnt always come from overwhelming strength
And you can have a 3/3 on turn 3 with proliferate tricks, but I'd prefer the ramping instead
"Gandora-G's" board wipe effect is strong, but it is an Ignition Effect (so it can be stopped by any Quick Effect removal) and it summons a monster from the Deck (so it can be stopped by "Ash Blossom")
During the pandemic, these elusive Charizard cards boomed in value and were frequently being sold to collectors and investors for huge sums of money
Round out your deck with spells and traps that can protect your monsters to allow you to draw the cards you need
So not only does this card negate their attack, it can also destroy your opponents monsters and do damage to their life points if the monster attacking was strong enough to do so