At the beginning of your end step, if eight or more cards are in your graveyard, transform this enchantment
It featured in some of the earliest decks in the game, it was a pivotal piece of the Sligh deck which essentially acted as the foundation of the mono red aggro archetype, and its presence has been significant in Modern from the first day of the format as it has featured in many of the formats best decks from Zoo to Splinter Twin to Jund
Cards like Star of Extinction and Blasphemous Act gain 80-100 life with this pair
The four of them are good, and any can be the focus
Luminous Broodmoth /**Mothra, Supersonic Queen** Id be damned if I didnt include Godzillas mistress
If mana generated with Arena of Glory's last ability is spent on a noncreature spell that becomes a creature later in the turn, that creature won't have haste