Cards like Approach of the Second Sun or Maze's End usually see some play in decks aiming to break them
As a flier, however, Fearless FledglingFearless Fledgling will constantly be going over the top at opponents for the entire game if it's not dealt with
Greel, Mind Raker Greel, Mind Raker strikes me as the worst horror commander because its discard ability targets a single player, and thats ineffective in EDH
Paying 5 mana protects all your creatures, with even more lifegain
If a card with persist is removed from the graveyard after it dies but before the triggered ability resolves, it won't be returned to the battlefield
When you consider the last Standard legal set to be released The Lost Caverns of Ixalan had 471 cards in it, these six sets will be adding a lot of cards to the Magic ecosystem in both new cards and reprint alternatives, whether they have new art, new treatments, or printed in the old border