From Wizards ' perspective, embracing the foil loophole would have the potential to make the company near-infinite amounts of money
For players who care more about mechanics over artwork, this wont detract too much from the experience
How uncommon you ask
Players should be free to open packs, craft cards, and purchase card styles without worrying about doing things "the right way." I get itif there's one thing Magic players love, it's learning to optimize their gameplay, but there shouldn't be an "optimal way" to bling out your deck
Brawl Legal Vintage Legal Timeless Legal Commander Legal Pauper Not Legal Oathbreaker Legal Penny Not Legal Toolbox Buy This Card Notes and Rules Information for Norman Osborn // Green Goblin: Green Goblin's cost-reduction ability reduces only the generic mana component of a spell's cost
In metagames rife with Reliquary Towers and full grips, this is going to be obscenely good (because it'll be like a 30/30, and it will tutor for that Strip Mine, Dust Bowl, and/or Wasteland to destroy the Towers)