It is possible (though very unlucky) to get no Legendary cards in a full sealed booster box, and there are no guaranteed Enchanted/Legendary slots in a full booster case
There's tons of examples like that
Make no mistake about it, this sent the message that Wizards clearly wanted Affinity to no longer exist
Beloved Dungeons & Dragons heroes and monsters have ventured into Magic for the ultimate crossover
For example, if you control two Phials of Galadriel and would draw a card while you have no cards in hand, the effect of one Phial of Galadriel will replace the event "draw a card" with "draw two cards." The effect of the other Phial of Galadriel will replace the drawing of the first of those two cards with "draw two cards." In total, you would draw three cards
As much as Mana Barbs is strong, it becomes the target of removals as soon as it enters the board, which would make it a vain investment in Magic: The Gathering