They schedule prereleases, Pro Tours, B&R announcements, Standard rotations, Game Days, all of that around their Standard expansions
Zilortha lets your non-Human creatures assign damage as though they werent blocked, which often turns a developed board into lethal out of nowhere
Three strength on a character you can have out on your first turn is mighty impressive, and a quick way to start shutting down your rivals weaker characters before they have a chance to quest or retaliate
Ive found that the more burn spells you play, the better Wheel of Fortune and Timetwister become (especially Timetwister, which can recycle the burn spells youve already used, and where you are likely to draw enough burn to kill your opponent before they can untap and use their new hand)
There's something to be said for being the best at something
The trouble is finding one