PTCGO is far from perfect itself, but in my opinion the game looks better, has smoother and more responsive gameplay, and includes more game modes like Events and Expanded
Nihil Spellbomb Nihil Spellbomb was for a long time a graveyard hate staple, allowing you to get a Relic of Progenitus-like effect in black decks
The end result is usually the match going to time, assuming the Top player's opponent doesn't flip the table first
There are certainly some themes present in this expansion, but because of the sixteen games in the series, it feels like the cards are all designed to do various weird and unique things, at the cost of them being rather weak in power level
2013-06-07 Masked Admirers will return to your hand before the creature spell you cast resolves.
City of Solitude is one of the best ways to do that