While having to ban cards in Standard is bad, hyping up a new card type and having it fall flat and go unplayed is (perhaps) just as bad, so Wizards is incentivized to take more risks to make sure new card types see play
Aside from the value, though, and aside from its place in perhaps the greatest collectible hobby of all time it's just an absolutely beautiful piece of artwork that has influenced Pokmon sets for years and years to follow
Regardless, theres an aura of holiness to these
Unstoppable Plan gets the weenies (and all others) back online on your opponents' turns, freeing up for instant-convokes or just blockers
Fun fact: Lemurs are named after the lemures of myth because of the haunting sounds they make and their shining eyes
I'm not proud of it), and the third helps to make sure that you hit your third land drop but also provides a bit of stall (in the freaky face-wall) and a bit of life in a cheap early enchantment