Many powerful cards reward you for using non-creature spells, such as Young Pyromancer and Thermo-Alchemist
The instant-win text was almost removed by Aaron Forsythe (as told in an awesome article by Mark Gottlieb), but kept for the sake of coolness and the card feeling sufficiently rare
Thats technically true, but here they refer to the support cards in our deck
Piplup Art Rare, 085/080 Adorably cute Pokmon cards always tend to make the list of the most valuable cards in any set, and this Piplup card is a very good example of a card with extremely cute artwork
Conversely, when you knew an established deck like Sultai Energy but read an article by Jadine Klomparens about a Winding Constrictor-based Energy deck that utilizes Hadanas Climb, how quick would you be to accept that
The DCI, as google tells me, is the governing body behind things like banned cards, restricted cards and the way that the competitive gameplay is governed, and the artwork (done by Maro?) is just a scribbled dude in a blindfold holding a mug of beer tossing darts at cards on a dartboard as a self-deprecating way to show off the "rigorous decision-making process" that the DCI uses to ban a card