After sneaking out a win at Pro Tour Return to Ravnica by catching the field by surprise, Eggs became a "real" deck in Modern, which was a miserable experience for everyone involved except for the person playing Eggs
The decks cover monster, Red-Boot Boost Dragon, can return up to seven Dragon-type monsters in the graveyard to the deck to inflict 100 life points of damage for each
The type shift from Fire to Darkness is a genuine design choice that worked: the card looks unlike any Charizard before it and still reads immediately as Charizard
This exclusivity, combined with many copies of the card becoming unplayable through warping (due to being a foil-only), lead many to become totally disenfranchised with mechanically unique promos in competitive play
Gentle Handling: Hold the card by its edges, using your fingertips rather than the flat of your fingers
The boosts from All That Glitters can be enough to be able to take someone out of the game with just on swing