As with Molten Echoes, almost every tribal deck has creatures with enter the battlefield abilities, so doubling them would be akin to a Panharmonicon that gives you extra bodies
You must also reveal all face-down spells and permanents you control if you leave the game or the game end
There is no difference in pull rates, no difference in card distribution, and no structural advantage to either format from a purely statistical perspective
While these decks focused on more Turbo strategies in previous formats, the Darkness-type is now a Toolbox type of deck that can adapt to a variety of different situations
Once during your turn (before your attack), you may choose a card from your hand and put it as a Prize card face up
Gisela is fairly vanilla when it comes to EDH creatures, porting Baneslayer Angel onto a four-mana card