While "Polymerization" is in your GY, your opponent cannot target this card with card effects
From there you can spend your mana to kill your opponents with tons of the combo pieces like Makeshift Munitions, Hissing Iguanar, or Flamewave Invoker
In addition to the narrative, the 20 Lore Cards also combine to create a Lore Book, as well as two different 9 card art puzzles for players and collectors to piece together
Another thing I heard from many of the people whom I spoke to was the importance of limiting the number of copies of cards in their collections: Jesse Lyons from Castles and Cooks and jestergoblin: I generally keep four of each card with the exception of staples, like Brainstorm or Counterspell, where I have around twenty copies. Adam Styborski from pretty much everywhere but primarily GatheringMagic and DailyMTG.com: I sell/trade most of my rares and valuable commons/uncommons
Too Slow and Boring Second Sunrise While Second Sunrise probably would have been banned anyway, it was Brian Kibler who sealed the card's fate when he infamously "put an F6 (the Magic Online key for "pass until end of turn") into play" during the Top 8 of Grand Prix San Diego back in 2013
They can shoot fire, enchant the world, dissolve stone or steel, and even nullify a spell in progress