There are no attackers or blockers, so abilities like flying have no effect
The Moxen and Black Lotus, lands like Tolarian Academy, the Affinity mechanic, Stoneforge Mystic, Aetherworks Marvel all of these circumvent the traditional flow of a game and allow you to rocket, if not outright jump, straight to the finish line of your decks game plan
Some of these cards are Historic legal, but I'll get to that later
The option to steal their Sarkhan Vol, their Karn Liberated or even their Garruk Wildspeaker is pretty potent
Most other tap effects are in white, which thematically justifies them as traps or law magic
One day you'd play seven of them and all of them would die on the first attempt, taking away the whole reason you played blue-red in the first place